40057072 has 20 divisors (see below), whose sum is σ = 84666456. Its totient is φ = 18207680.

The previous prime is 40057067. The next prime is 40057081. The reversal of 40057072 is 27075004.

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, 113623 + ... + 113974.

Almost surely, 2^40057072 is an apocalyptic number.

It is an amenable number.

40057072 is an abundant number, since it is smaller than the sum of its proper divisors (44609384).

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

40057072 is a wasteful number, since it uses less digits than its factorization.

40057072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227616 (or 227610 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 40057072 is about 6329.0656498412. The cubic root of 40057072 is about 342.1577649509.

The spelling of 40057072 in words is "forty million, fifty-seven thousand, seventy-two".