40512388 has 12 divisors (see below), whose sum is σ = 81024832. Its totient is φ = 17362440.

The previous prime is 40512371. The next prime is 40512397. The reversal of 40512388 is 88321504.

40512388 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723408 + ... + 723463.

Almost surely, 2^40512388 is an apocalyptic number.

It is an amenable number.

40512388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40512388 is a wasteful number, since it uses less digits than its factorization.

40512388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446882 (or 1446880 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 40512388 is about 6364.9342494640. The cubic root of 40512388 is about 343.4492833202.

The spelling of 40512388 in words is "forty million, five hundred twelve thousand, three hundred eighty-eight".