20883100 has 36 divisors (see below), whose sum is σ = 51791824. Its totient is φ = 7159680.

The previous prime is 20883073. The next prime is 20883143. The reversal of 20883100 is 138802.

It is a super-2 number, since 2×20883100² = 872207731220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14217 + ... + 15616.

Almost surely, 2^20883100 is an apocalyptic number.

20883100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20883100 is an abundant number, since it is smaller than the sum of its proper divisors (30908724).

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

20883100 is a wasteful number, since it uses less digits than its factorization.

20883100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29854 (or 29847 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 20883100 is about 4569.8030592138. The cubic root of 20883100 is about 275.3795310597.

The spelling of 20883100 in words is "twenty million, eight hundred eighty-three thousand, one hundred".