20796156 has 24 divisors (see below), whose sum is σ = 53916240. Its totient is φ = 6932016.

The previous prime is 20796077. The next prime is 20796179. The reversal of 20796156 is 65169702.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20796156.

It is a congruent 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, 96171 + ... + 96386.

It is an arithmetic number, because the mean of its divisors is an integer number (2246510).

Almost surely, 2^20796156 is an apocalyptic number.

It is an amenable number.

20796156 is an abundant number, since it is smaller than the sum of its proper divisors (33120084).

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

20796156 is a wasteful number, since it uses less digits than its factorization.

20796156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192570 (or 192562 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 20796156 is about 4560.2802545458. The cubic root of 20796156 is about 274.9968308175.

The spelling of 20796156 in words is "twenty million, seven hundred ninety-six thousand, one hundred fifty-six".