20955234 has 16 divisors (see below), whose sum is σ = 42485472. Its totient is φ = 6889248.

The previous prime is 20955227. The next prime is 20955241. The reversal of 20955234 is 43255902.

It is an interprime number because it is at equal distance from previous prime (20955227) and next prime (20955241).

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, 23484 + ... + 24359.

It is an arithmetic number, because the mean of its divisors is an integer number (2655342).

Almost surely, 2^20955234 is an apocalyptic number.

20955234 is an abundant number, since it is smaller than the sum of its proper divisors (21530238).

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

20955234 is a wasteful number, since it uses less digits than its factorization.

20955234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47921.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 20955234 is about 4577.6887181197. The cubic root of 20955234 is about 275.6962369022.

The spelling of 20955234 in words is "twenty million, nine hundred fifty-five thousand, two hundred thirty-four".