20902360 has 32 divisors (see below), whose sum is σ = 47401200. Its totient is φ = 8295040.

The previous prime is 20902313. The next prime is 20902381. The reversal of 20902360 is 6320902.

It is a zygodrome in base 3.

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, 3246 + ... + 7234.

Almost surely, 2^20902360 is an apocalyptic number.

20902360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20902360 is an abundant number, since it is smaller than the sum of its proper divisors (26498840).

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

20902360 is a wasteful number, since it uses less digits than its factorization.

20902360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131 (or 4127 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 20902360 is about 4571.9098853761. The cubic root of 20902360 is about 275.4641637703.

The spelling of 20902360 in words is "twenty million, nine hundred two thousand, three hundred sixty".