20332884 has 144 divisors (see below), whose sum is σ = 60653376. Its totient is φ = 5222400.

The previous prime is 20332877. The next prime is 20332891. The reversal of 20332884 is 48823302.

It is an interprime number because it is at equal distance from previous prime (20332877) and next prime (20332891).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 495904 + ... + 495944.

It is an arithmetic number, because the mean of its divisors is an integer number (421204).

Almost surely, 2^20332884 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 20332884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30326688).

20332884 is an abundant number, since it is smaller than the sum of its proper divisors (40320492).

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

20332884 is a wasteful number, since it uses less digits than its factorization.

20332884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 20332884 is about 4509.1999290340. The cubic root of 20332884 is about 272.9394598008.

The spelling of 20332884 in words is "twenty million, three hundred thirty-two thousand, eight hundred eighty-four".