20955814 has 16 divisors (see below), whose sum is σ = 35398656. Its totient is φ = 9217800.

The previous prime is 20955799. The next prime is 20955817. The reversal of 20955814 is 41855902.

It is a super-2 number, since 2×20955814² = 878292280805192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20955814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20955817) 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, 14682 + ... + 16045.

It is an arithmetic number, because the mean of its divisors is an integer number (2212416).

Almost surely, 2^20955814 is an apocalyptic number.

20955814 is a deficient number, since it is larger than the sum of its proper divisors (14442842).

20955814 is a wasteful number, since it uses less digits than its factorization.

20955814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30771.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 20955814 is about 4577.7520684283. The cubic root of 20955814 is about 275.6987804568.

The spelling of 20955814 in words is "twenty million, nine hundred fifty-five thousand, eight hundred fourteen".