40044628 has 24 divisors (see below), whose sum is σ = 79442720. Its totient is φ = 17508960.

The previous prime is 40044623. The next prime is 40044629. The reversal of 40044628 is 82644004.

It is a junction number, because it is equal to n+sod(n) for n = 40044596 and 40044605.

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, 19278 + ... + 21253.

Almost surely, 2^40044628 is an apocalyptic number.

It is an amenable number.

40044628 is a deficient number, since it is larger than the sum of its proper divisors (39398092).

40044628 is a wasteful number, since it uses less digits than its factorization.

40044628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40567 (or 40565 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 40044628 is about 6328.0824899807. The cubic root of 40044628 is about 342.1223300743.

The spelling of 40044628 in words is "forty million, forty-four thousand, six hundred twenty-eight".