40057288 has 16 divisors (see below), whose sum is σ = 75559680. Its totient is φ = 19908048.

The previous prime is 40057279. The next prime is 40057319. The reversal of 40057288 is 88275004.

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, 13656 + ... + 16327.

It is an arithmetic number, because the mean of its divisors is an integer number (4722480).

Almost surely, 2^40057288 is an apocalyptic number.

It is an amenable number.

40057288 is a deficient number, since it is larger than the sum of its proper divisors (35502392).

40057288 is a wasteful number, since it uses less digits than its factorization.

40057288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30156 (or 30152 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 40057288 is about 6329.0827139484. The cubic root of 40057288 is about 342.1583799563.

The spelling of 40057288 in words is "forty million, fifty-seven thousand, two hundred eighty-eight".