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4722944 = 2819971
BaseRepresentation
bin10010000001000100000000
322212221122212
4102001010000
52202113234
6245121252
755100342
oct22010400
98787585
104722944
112736466
1216b9228
13c94955
148ad292
156345ce
hex481100

4722944 has 36 divisors (see below), whose sum is σ = 9933840. Its totient is φ = 2234880.

The previous prime is 4722941. The next prime is 4722947. The reversal of 4722944 is 4492274.

It is an interprime number because it is at equal distance from previous prime (4722941) and next prime (4722947).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4722944.

It is not an unprimeable number, because it can be changed into a prime (4722941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4379 + ... + 5349.

It is an arithmetic number, because the mean of its divisors is an integer number (275940).

Almost surely, 24722944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4722944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4966920).

4722944 is an abundant number, since it is smaller than the sum of its proper divisors (5210896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4722944 is an equidigital number, since it uses as much as digits as its factorization.

4722944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 992 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 4722944 is about 2173.2335355410. The cubic root of 4722944 is about 167.7789988979.

The spelling of 4722944 in words is "four million, seven hundred twenty-two thousand, nine hundred forty-four".

Divisors: 1 2 4 8 16 19 32 38 64 76 128 152 256 304 608 971 1216 1942 2432 3884 4864 7768 15536 18449 31072 36898 62144 73796 124288 147592 248576 295184 590368 1180736 2361472 4722944