20128610 has 32 divisors (see below), whose sum is σ = 38707200. Its totient is φ = 7519680.

The previous prime is 20128607. The next prime is 20128631. The reversal of 20128610 is 1682102.

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 15 ways as a sum of consecutive naturals, for example, 7871 + ... + 10109.

It is an arithmetic number, because the mean of its divisors is an integer number (1209600).

Almost surely, 2^20128610 is an apocalyptic number.

20128610 is a deficient number, since it is larger than the sum of its proper divisors (18578590).

20128610 is a wasteful number, since it uses less digits than its factorization.

20128610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 20128610 is about 4486.4919480592. The cubic root of 20128610 is about 272.0223543479.

The spelling of 20128610 in words is "twenty million, one hundred twenty-eight thousand, six hundred ten".