20402402200 has 48 divisors (see below), whose sum is σ = 47515853880. Its totient is φ = 8147151360.

The previous prime is 20402402183. The next prime is 20402402213. The reversal of 20402402200 is 220420402.

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, 32587 + ... + 204613.

Almost surely, 2^20402402200 is an apocalyptic number.

20402402200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20402402200 is an abundant number, since it is smaller than the sum of its proper divisors (27113451680).

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

20402402200 is a wasteful number, since it uses less digits than its factorization.

20402402200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172636 (or 172627 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 20402402200 its reverse (220420402), we get a palindrome (20622822602).

The spelling of 20402402200 in words is "twenty billion, four hundred two million, four hundred two thousand, two hundred".