20799528 has 32 divisors (see below), whose sum is σ = 54736800. Its totient is φ = 6568128.

The previous prime is 20799503. The next prime is 20799563. The reversal of 20799528 is 82599702.

It is a self number, because there is not a number n which added to its sum of digits gives 20799528.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22351 + ... + 23262.

It is an arithmetic number, because the mean of its divisors is an integer number (1710525).

Almost surely, 2^20799528 is an apocalyptic number.

It is an amenable number.

20799528 is an abundant number, since it is smaller than the sum of its proper divisors (33937272).

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

20799528 is a wasteful number, since it uses less digits than its factorization.

20799528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45641 (or 45637 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 20799528 is about 4560.6499536798. The cubic root of 20799528 is about 275.0116931667.

The spelling of 20799528 in words is "twenty million, seven hundred ninety-nine thousand, five hundred twenty-eight".