200640057 has 16 divisors (see below), whose sum is σ = 282384960. Its totient is φ = 126366912.

The previous prime is 200640049. The next prime is 200640131. The reversal of 200640057 is 750046002.

It is a happy number.

It is not a de Polignac number, because 200640057 - 2³ = 200640049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200640047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16543 + ... + 25979.

It is an arithmetic number, because the mean of its divisors is an integer number (17649060).

Almost surely, 2^200640057 is an apocalyptic number.

It is an amenable number.

200640057 is a deficient number, since it is larger than the sum of its proper divisors (81744903).

200640057 is a wasteful number, since it uses less digits than its factorization.

200640057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9832.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 200640057 is about 14164.7469797381. The cubic root of 200640057 is about 585.4267293354.

Adding to 200640057 its reverse (750046002), we get a palindrome (950686059).

The spelling of 200640057 in words is "two hundred million, six hundred forty thousand, fifty-seven".