20529908 has 24 divisors (see below), whose sum is σ = 41197632. Its totient is φ = 8769024.

The previous prime is 20529881. The next prime is 20529911. The reversal of 20529908 is 80992502.

It is a congruent number.

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, 8660 + ... + 10772.

It is an arithmetic number, because the mean of its divisors is an integer number (1716568).

Almost surely, 2^20529908 is an apocalyptic number.

20529908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20529908 is an abundant number, since it is smaller than the sum of its proper divisors (20667724).

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

20529908 is a wasteful number, since it uses less digits than its factorization.

20529908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471 (or 2469 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 20529908 is about 4530.9941513977. The cubic root of 20529908 is about 273.8182146192.

The spelling of 20529908 in words is "twenty million, five hundred twenty-nine thousand, nine hundred eight".