40202057 has 8 divisors (see below), whose sum is σ = 45988800. Its totient is φ = 34426224.

The previous prime is 40202051. The next prime is 40202083. The reversal of 40202057 is 75020204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40202057 - 2²⁰ = 39153481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40202051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7994 + ... + 12012.

It is an arithmetic number, because the mean of its divisors is an integer number (5748600).

Almost surely, 2^40202057 is an apocalyptic number.

It is an amenable number.

40202057 is a deficient number, since it is larger than the sum of its proper divisors (5786743).

40202057 is a wasteful number, since it uses less digits than its factorization.

40202057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5455.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 40202057 is about 6340.5092066805. The cubic root of 40202057 is about 342.5700767687.

The spelling of 40202057 in words is "forty million, two hundred two thousand, fifty-seven".