20522908 has 24 divisors (see below), whose sum is σ = 41166944. Its totient is φ = 8769600.

The previous prime is 20522891. The next prime is 20522939. The reversal of 20522908 is 80922502.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10918 + ... + 12658.

Almost surely, 2^20522908 is an apocalyptic number.

20522908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20522908 is an abundant number, since it is smaller than the sum of its proper divisors (20644036).

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

20522908 is a wasteful number, since it uses less digits than its factorization.

20522908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173 (or 2171 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 20522908 is about 4530.2216281326. The cubic root of 20522908 is about 273.7870901838.

The spelling of 20522908 in words is "twenty million, five hundred twenty-two thousand, nine hundred eight".