20792320 has 88 divisors (see below), whose sum is σ = 51879168. Its totient is φ = 7987200.

The previous prime is 20792287. The next prime is 20792329. The reversal of 20792320 is 2329702.

It is not an unprimeable number, because it can be changed into a prime (20792329) 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, 158655 + ... + 158785.

It is an arithmetic number, because the mean of its divisors is an integer number (589536).

Almost surely, 2^20792320 is an apocalyptic number.

20792320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20792320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25939584).

20792320 is an abundant number, since it is smaller than the sum of its proper divisors (31086848).

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

20792320 is a wasteful number, since it uses less digits than its factorization.

20792320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 20792320 is about 4559.8596469628. The cubic root of 20792320 is about 274.9799213990.

It can be divided in two parts, 20792 and 320, that added together give a palindrome (21112).

The spelling of 20792320 in words is "twenty million, seven hundred ninety-two thousand, three hundred twenty".