40044624 has 40 divisors (see below), whose sum is σ = 104279040. Its totient is φ = 13241088.

The previous prime is 40044623. The next prime is 40044629. The reversal of 40044624 is 42644004.

It is a super-2 number, since 2×40044624² = 3207143822602752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 40044594 and 40044603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40044623) 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, 2812 + ... + 9380.

It is an arithmetic number, because the mean of its divisors is an integer number (2606976).

Almost surely, 2^40044624 is an apocalyptic number.

It is an amenable number.

40044624 is an abundant number, since it is smaller than the sum of its proper divisors (64234416).

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

40044624 is a wasteful number, since it uses less digits than its factorization.

40044624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6707 (or 6701 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 40044624 is about 6328.0821739292. The cubic root of 40044624 is about 342.1223186830.

Adding to 40044624 its reverse (42644004), we get a palindrome (82688628).

The spelling of 40044624 in words is "forty million, forty-four thousand, six hundred twenty-four".