40312508 has 24 divisors (see below), whose sum is σ = 75175632. Its totient is φ = 18849024.

The previous prime is 40312507. The next prime is 40312513. The reversal of 40312508 is 80521304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40312507) 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, 9266 + ... + 12902.

It is an arithmetic number, because the mean of its divisors is an integer number (3132318).

Almost surely, 2^40312508 is an apocalyptic number.

It is an amenable number.

40312508 is a deficient number, since it is larger than the sum of its proper divisors (34863124).

40312508 is a wasteful number, since it uses less digits than its factorization.

40312508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821 (or 3819 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 40312508 is about 6349.2131795995. The cubic root of 40312508 is about 342.8835152002.

The spelling of 40312508 in words is "forty million, three hundred twelve thousand, five hundred eight".