20532288 has 56 divisors (see below), whose sum is σ = 62089792. Its totient is φ = 5865984.

The previous prime is 20532271. The next prime is 20532289. The reversal of 20532288 is 88223502.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (20532289) 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, 6295 + ... + 8982.

Almost surely, 2^20532288 is an apocalyptic number.

20532288 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20532288 is an abundant number, since it is smaller than the sum of its proper divisors (41557504).

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

20532288 is a wasteful number, since it uses less digits than its factorization.

20532288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15299 (or 15289 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 20532288 is about 4531.2567793053. The cubic root of 20532288 is about 273.8287953156.

The spelling of 20532288 in words is "twenty million, five hundred thirty-two thousand, two hundred eighty-eight".