20432960 has 28 divisors (see below), whose sum is σ = 48656748. Its totient is φ = 8173056.

The previous prime is 20432957. The next prime is 20432969. The reversal of 20432960 is 6923402.

It can be written as a sum of positive squares in 2 ways, for example, as 3655744 + 16777216 = 1912^2 + 4096^2 .

It is not an unprimeable number, because it can be changed into a prime (20432969) 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, 31607 + ... + 32246.

It is an arithmetic number, because the mean of its divisors is an integer number (1737741).

Almost surely, 2^20432960 is an apocalyptic number.

20432960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20432960 is an abundant number, since it is smaller than the sum of its proper divisors (28223788).

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

20432960 is an equidigital number, since it uses as much as digits as its factorization.

20432960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63870 (or 63860 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 20432960 is about 4520.2831769702. The cubic root of 20432960 is about 273.3865188328.

The spelling of 20432960 in words is "twenty million, four hundred thirty-two thousand, nine hundred sixty".