20032160 has 24 divisors (see below), whose sum is σ = 47326356. Its totient is φ = 8012800.

The previous prime is 20032141. The next prime is 20032163. The reversal of 20032160 is 6123002.

It can be written as a sum of positive squares in 2 ways, for example, as 19749136 + 283024 = 4444^2 + 532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032163) 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, 62441 + ... + 62760.

Almost surely, 2^20032160 is an apocalyptic number.

20032160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20032160 is an abundant number, since it is smaller than the sum of its proper divisors (27294196).

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

20032160 is a wasteful number, since it uses less digits than its factorization.

20032160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125216 (or 125208 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20032160 is about 4475.7301080382. The cubic root of 20032160 is about 271.5871765292.

Adding to 20032160 its reverse (6123002), we get a palindrome (26155162).

The spelling of 20032160 in words is "twenty million, thirty-two thousand, one hundred sixty".