20128714 has 16 divisors (see below), whose sum is σ = 33652800. Its totient is φ = 8973504.

The previous prime is 20128709. The next prime is 20128739. The reversal of 20128714 is 41782102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14934 + ... + 16225.

It is an arithmetic number, because the mean of its divisors is an integer number (2103300).

Almost surely, 2^20128714 is an apocalyptic number.

20128714 is a deficient number, since it is larger than the sum of its proper divisors (13524086).

20128714 is a wasteful number, since it uses less digits than its factorization.

20128714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31197.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 20128714 is about 4486.5035383916. The cubic root of 20128714 is about 272.0228228398.

The spelling of 20128714 in words is "twenty million, one hundred twenty-eight thousand, seven hundred fourteen".