20057204 has 6 divisors (see below), whose sum is σ = 35100114. Its totient is φ = 10028600.

The previous prime is 20057197. The next prime is 20057239. The reversal of 20057204 is 40275002.

It can be written as a sum of positive squares in only one way, i.e., 16810000 + 3247204 = 4100^2 + 1802^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2507147 + ... + 2507154.

It is an arithmetic number, because the mean of its divisors is an integer number (5850019).

Almost surely, 2^20057204 is an apocalyptic number.

It is an amenable number.

20057204 is a deficient number, since it is larger than the sum of its proper divisors (15042910).

20057204 is a wasteful number, since it uses less digits than its factorization.

20057204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5014305 (or 5014303 counting only the distinct ones).

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

The square root of 20057204 is about 4478.5269899823. The cubic root of 20057204 is about 271.7003078935.

The spelling of 20057204 in words is "twenty million, fifty-seven thousand, two hundred four".