20656914 has 16 divisors (see below), whose sum is σ = 43488480. Its totient is φ = 6523200.

The previous prime is 20656877. The next prime is 20656919. The reversal of 20656914 is 41965602.

It is not an unprimeable number, because it can be changed into a prime (20656919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90487 + ... + 90714.

It is an arithmetic number, because the mean of its divisors is an integer number (2718030).

Almost surely, 2^20656914 is an apocalyptic number.

20656914 is an abundant number, since it is smaller than the sum of its proper divisors (22831566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20656914 is a wasteful number, since it uses less digits than its factorization.

20656914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181225.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 20656914 is about 4544.9877887625. The cubic root of 20656914 is about 274.3817029027.

The spelling of 20656914 in words is "twenty million, six hundred fifty-six thousand, nine hundred fourteen".