40312456 has 16 divisors (see below), whose sum is σ = 75686400. Its totient is φ = 20129424.

The previous prime is 40312439. The next prime is 40312463. The reversal of 40312456 is 65421304.

It is a self number, because there is not a number n which added to its sum of digits gives 40312456.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3985 + ... + 9823.

It is an arithmetic number, because the mean of its divisors is an integer number (4730400).

Almost surely, 2^40312456 is an apocalyptic number.

It is an amenable number.

40312456 is a deficient number, since it is larger than the sum of its proper divisors (35373944).

40312456 is a wasteful number, since it uses less digits than its factorization.

40312456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6708 (or 6704 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 40312456 is about 6349.2090846026. The cubic root of 40312456 is about 342.8833677692.

The spelling of 40312456 in words is "forty million, three hundred twelve thousand, four hundred fifty-six".