20088832 has 48 divisors (see below), whose sum is σ = 42604380. Its totient is φ = 9437184.

The previous prime is 20088823. The next prime is 20088839. The reversal of 20088832 is 23888002.

It can be written as a sum of positive squares in 2 ways, for example, as 15492096 + 4596736 = 3936^2 + 2144^2 .

It is a super-2 number, since 2×20088832² = 807122342248448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20088794 and 20088803.

It is not an unprimeable number, because it can be changed into a prime (20088839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34528 + ... + 35104.

Almost surely, 2^20088832 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 20088832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21302190).

20088832 is an abundant number, since it is smaller than the sum of its proper divisors (22515548).

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

20088832 is an equidigital number, since it uses as much as digits as its factorization.

20088832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 596 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 20088832 is about 4482.0566707707. The cubic root of 20088832 is about 271.8430467049.

The spelling of 20088832 in words is "twenty million, eighty-eight thousand, eight hundred thirty-two".