40312700 has 36 divisors (see below), whose sum is σ = 87754800. Its totient is φ = 16074240.

The previous prime is 40312693. The next prime is 40312739. The reversal of 40312700 is 721304.

It is a happy number.

It is a super-2 number, since 2×40312700² = 3250227562580000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59564 + ... + 60236.

Almost surely, 2^40312700 is an apocalyptic number.

It is an amenable number.

40312700 is an abundant number, since it is smaller than the sum of its proper divisors (47442100).

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

40312700 is a wasteful number, since it uses less digits than its factorization.

40312700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1279 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 40312700 is about 6349.2282995652. The cubic root of 40312700 is about 342.8840595601.

The spelling of 40312700 in words is "forty million, three hundred twelve thousand, seven hundred".