20201900 has 36 divisors (see below), whose sum is σ = 44059680. Its totient is φ = 8040000.

The previous prime is 20201897. The next prime is 20201911. The reversal of 20201900 is 910202.

It is a super-2 number, since 2×20201900² = 816233527220000, which contains 22 as substring.

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, 26525 + ... + 27275.

It is an arithmetic number, because the mean of its divisors is an integer number (1223880).

Almost surely, 2^20201900 is an apocalyptic number.

20201900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201900 is an abundant number, since it is smaller than the sum of its proper divisors (23857780).

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

20201900 is a wasteful number, since it uses less digits than its factorization.

20201900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 20201900 is about 4494.6523781045. The cubic root of 20201900 is about 272.3521067139.

The spelling of 20201900 in words is "twenty million, two hundred one thousand, nine hundred".