20235992 has 16 divisors (see below), whose sum is σ = 43362960. Its totient is φ = 8672544.

The previous prime is 20235989. The next prime is 20236031. The reversal of 20235992 is 29953202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180623 + ... + 180734.

It is an arithmetic number, because the mean of its divisors is an integer number (2710185).

Almost surely, 2^20235992 is an apocalyptic number.

It is an amenable number.

20235992 is an abundant number, since it is smaller than the sum of its proper divisors (23126968).

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

20235992 is a wasteful number, since it uses less digits than its factorization.

20235992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361370 (or 361366 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 20235992 is about 4498.4432862936. The cubic root of 20235992 is about 272.5052244881.

The spelling of 20235992 in words is "twenty million, two hundred thirty-five thousand, nine hundred ninety-two".