40512938 has 16 divisors (see below), whose sum is σ = 65162880. Its totient is φ = 18822336.

The previous prime is 40512937. The next prime is 40512947. The reversal of 40512938 is 83921504.

40512938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40512937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4856 + ... + 10227.

It is an arithmetic number, because the mean of its divisors is an integer number (4072680).

Almost surely, 2^40512938 is an apocalyptic number.

40512938 is a deficient number, since it is larger than the sum of its proper divisors (24649942).

40512938 is a wasteful number, since it uses less digits than its factorization.

40512938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15181.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 40512938 is about 6364.9774547912. The cubic root of 40512938 is about 343.4508375464.

The spelling of 40512938 in words is "forty million, five hundred twelve thousand, nine hundred thirty-eight".