4644972 has 48 divisors (see below), whose sum is σ = 12348000. Its totient is φ = 1509120.

The previous prime is 4644971. The next prime is 4645007. The reversal of 4644972 is 2794464.

4644972 is a `hidden beast` number, since 4 + 644 + 9 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (4644971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3904 + ... + 4952.

It is an arithmetic number, because the mean of its divisors is an integer number (257250).

Almost surely, 2^4644972 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 4644972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6174000).

4644972 is an abundant number, since it is smaller than the sum of its proper divisors (7703028).

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

4644972 is a wasteful number, since it uses less digits than its factorization.

4644972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 1095 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 4644972 is about 2155.2197103776. The cubic root of 4644972 is about 166.8505721092.

The spelling of 4644972 in words is "four million, six hundred forty-four thousand, nine hundred seventy-two".