31795040 has 24 divisors (see below), whose sum is σ = 75116160. Its totient is φ = 12717952.

The previous prime is 31795033. The next prime is 31795061. The reversal of 31795040 is 4059713.

It is a junction number, because it is equal to n+sod(n) for n = 31794994 and 31795012.

It is a congruent number.

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, 99200 + ... + 99519.

It is an arithmetic number, because the mean of its divisors is an integer number (3129840).

Almost surely, 2^31795040 is an apocalyptic number.

It is an amenable number.

31795040 is an abundant number, since it is smaller than the sum of its proper divisors (43321120).

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

31795040 is a wasteful number, since it uses less digits than its factorization.

31795040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198734 (or 198726 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 31795040 is about 5638.7090721193. The cubic root of 31795040 is about 316.8009378267.

The spelling of 31795040 in words is "thirty-one million, seven hundred ninety-five thousand, forty".