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44040340 = 2252419137
BaseRepresentation
bin1010100000000…
…0000010010100
310001212110222201
42220000002110
542233242330
64211534244
71043223331
oct250000224
9101773881
1044040340
1122950183
12128ba384
13917c896
145bc5988
153cedeca
hex2a00094

44040340 has 24 divisors (see below), whose sum is σ = 92878632. Its totient is φ = 17541120.

The previous prime is 44040329. The next prime is 44040341. The reversal of 44040340 is 4304044.

It can be written as a sum of positive squares in 4 ways, for example, as 559504 + 43480836 = 748^2 + 6594^2 .

It is a super-3 number, since 3×440403403 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44040341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252 + ... + 9388.

It is an arithmetic number, because the mean of its divisors is an integer number (3869943).

Almost surely, 244040340 is an apocalyptic number.

It is an amenable number.

44040340 is an abundant number, since it is smaller than the sum of its proper divisors (48838292).

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

44040340 is a wasteful number, since it uses less digits than its factorization.

44040340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9387 (or 9385 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 44040340 is about 6636.2896259883. The cubic root of 44040340 is about 353.1426901624.

Adding to 44040340 its reverse (4304044), we get a palindrome (48344384).

The spelling of 44040340 in words is "forty-four million, forty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 241 482 964 1205 2410 4820 9137 18274 36548 45685 91370 182740 2202017 4404034 8808068 11010085 22020170 44040340