20059900 has 36 divisors (see below), whose sum is σ = 49750288. Its totient is φ = 6877440.

The previous prime is 20059861. The next prime is 20059901. The reversal of 20059900 is 995002.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20059901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13629 + ... + 15028.

Almost surely, 2^20059900 is an apocalyptic number.

20059900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20059900 is an abundant number, since it is smaller than the sum of its proper divisors (29690388).

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

20059900 is a wasteful number, since it uses less digits than its factorization.

20059900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28678 (or 28671 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 20059900 is about 4478.8279716908. The cubic root of 20059900 is about 271.7124809298.

The spelling of 20059900 in words is "twenty million, fifty-nine thousand, nine hundred".