20532688 has 20 divisors (see below), whose sum is σ = 43399008. Its totient is φ = 9332960.

The previous prime is 20532683. The next prime is 20532697. The reversal of 20532688 is 88623502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20532683) 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, 58156 + ... + 58507.

Almost surely, 2^20532688 is an apocalyptic number.

It is an amenable number.

20532688 is an abundant number, since it is smaller than the sum of its proper divisors (22866320).

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

20532688 is a wasteful number, since it uses less digits than its factorization.

20532688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116682 (or 116676 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 20532688 is about 4531.3009169553. The cubic root of 20532688 is about 273.8305735036.

The spelling of 20532688 in words is "twenty million, five hundred thirty-two thousand, six hundred eighty-eight".