40057790 has 16 divisors (see below), whose sum is σ = 72182880. Its totient is φ = 16005600.

The previous prime is 40057781. The next prime is 40057837. The reversal of 40057790 is 9775004.

It is a super-3 number, since 3×40057790³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11471 + ... + 14549.

It is an arithmetic number, because the mean of its divisors is an integer number (4511430).

Almost surely, 2^40057790 is an apocalyptic number.

40057790 is a deficient number, since it is larger than the sum of its proper divisors (32125090).

40057790 is a wasteful number, since it uses less digits than its factorization.

40057790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 40057790 is about 6329.1223720197. The cubic root of 40057790 is about 342.1598092658.

The spelling of 40057790 in words is "forty million, fifty-seven thousand, seven hundred ninety".