20057210 has 16 divisors (see below), whose sum is σ = 36288000. Its totient is φ = 7981776.

The previous prime is 20057197. The next prime is 20057239. The reversal of 20057210 is 1275002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3050 + ... + 7029.

It is an arithmetic number, because the mean of its divisors is an integer number (2268000).

Almost surely, 2^20057210 is an apocalyptic number.

20057210 is a deficient number, since it is larger than the sum of its proper divisors (16230790).

20057210 is a wasteful number, since it uses less digits than its factorization.

20057210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10285.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 20057210 is about 4478.5276598454. The cubic root of 20057210 is about 271.7003349861.

The spelling of 20057210 in words is "twenty million, fifty-seven thousand, two hundred ten".