20526828 has 24 divisors (see below), whose sum is σ = 54738432. Its totient is φ = 5864784.

The previous prime is 20526811. The next prime is 20526829. The reversal of 20526828 is 82862502.

It is not an unprimeable number, because it can be changed into a prime (20526829) 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, 122100 + ... + 122267.

It is an arithmetic number, because the mean of its divisors is an integer number (2280768).

Almost surely, 2^20526828 is an apocalyptic number.

20526828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20526828 is an abundant number, since it is smaller than the sum of its proper divisors (34211604).

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

20526828 is a wasteful number, since it uses less digits than its factorization.

20526828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244381 (or 244379 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 20526828 is about 4530.6542573893. The cubic root of 20526828 is about 273.8045207394.

The spelling of 20526828 in words is "twenty million, five hundred twenty-six thousand, eight hundred twenty-eight".