20792816 has 80 divisors (see below), whose sum is σ = 47044608. Its totient is φ = 8812800.

The previous prime is 20792813. The next prime is 20792857. The reversal of 20792816 is 61829702.

20792816 = 8³ + 9³ + ... + 95³.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20792813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201821 + ... + 201923.

Almost surely, 2^20792816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20792816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23522304).

20792816 is an abundant number, since it is smaller than the sum of its proper divisors (26251792).

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

20792816 is a wasteful number, since it uses less digits than its factorization.

20792816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 20792816 is about 4559.9140342774. The cubic root of 20792816 is about 274.9821079268.

The spelling of 20792816 in words is "twenty million, seven hundred ninety-two thousand, eight hundred sixteen".