20089400 has 24 divisors (see below), whose sum is σ = 46708320. Its totient is φ = 8035680.

The previous prime is 20089397. The next prime is 20089417. The reversal of 20089400 is 498002.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50024 + ... + 50423.

It is an arithmetic number, because the mean of its divisors is an integer number (1946180).

Almost surely, 2^20089400 is an apocalyptic number.

20089400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20089400 is an abundant number, since it is smaller than the sum of its proper divisors (26618920).

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

20089400 is a wasteful number, since it uses less digits than its factorization.

20089400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100463 (or 100454 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 20089400 is about 4482.1200340910. The cubic root of 20089400 is about 271.8456087486.

The spelling of 20089400 in words is "twenty million, eighty-nine thousand, four hundred".