20898792 has 48 divisors (see below), whose sum is σ = 58558500. Its totient is φ = 6725376.

The previous prime is 20898767. The next prime is 20898793. The reversal of 20898792 is 29789802.

It can be written as a sum of positive squares in 2 ways, for example, as 18096516 + 2802276 = 4254^2 + 1674^2 .

It is not an unprimeable number, because it can be changed into a prime (20898793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2917 + ... + 7092.

Almost surely, 2^20898792 is an apocalyptic number.

It is an amenable number.

20898792 is an abundant number, since it is smaller than the sum of its proper divisors (37659708).

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

20898792 is a wasteful number, since it uses less digits than its factorization.

20898792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050 (or 10043 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 20898792 is about 4571.5196598068. The cubic root of 20898792 is about 275.4484891118.

The spelling of 20898792 in words is "twenty million, eight hundred ninety-eight thousand, seven hundred ninety-two".