20922832 has 40 divisors (see below), whose sum is σ = 46872000. Its totient is φ = 8861952.

The previous prime is 20922829. The next prime is 20922851. The reversal of 20922832 is 23822902.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 20922832.

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, 8919 + ... + 11017.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^20922832 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 20922832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23436000).

20922832 is an abundant number, since it is smaller than the sum of its proper divisors (25949168).

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

20922832 is a wasteful number, since it uses less digits than its factorization.

20922832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20922832 is about 4574.1482267194. The cubic root of 20922832 is about 275.5540652981.

The spelling of 20922832 in words is "twenty million, nine hundred twenty-two thousand, eight hundred thirty-two".