20932496 has 40 divisors (see below), whose sum is σ = 44023224. Its totient is φ = 9584640.

The previous prime is 20932493. The next prime is 20932543. The reversal of 20932496 is 69423902.

It can be written as a sum of positive squares in 4 ways, for example, as 2131600 + 18800896 = 1460^2 + 4336^2 .

It is not an unprimeable number, because it can be changed into a prime (20932493) 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, 32336 + ... + 32976.

Almost surely, 2^20932496 is an apocalyptic number.

20932496 is a gapful number since it is divisible by the number (26) 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 20932496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22011612).

20932496 is an abundant number, since it is smaller than the sum of its proper divisors (23090728).

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

20932496 is a wasteful number, since it uses less digits than its factorization.

20932496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 20932496 is about 4575.2044763049. The cubic root of 20932496 is about 275.5964837846.

The spelling of 20932496 in words is "twenty million, nine hundred thirty-two thousand, four hundred ninety-six".