20404213300 has 72 divisors (see below), whose sum is σ = 45172719872. Its totient is φ = 7997616000.

The previous prime is 20404213289. The next prime is 20404213367. The reversal of 20404213300 is 331240402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1646929 + ... + 1659271.

Almost surely, 2^20404213300 is an apocalyptic number.

20404213300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20404213300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22586359936).

20404213300 is an abundant number, since it is smaller than the sum of its proper divisors (24768506572).

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

20404213300 is a wasteful number, since it uses less digits than its factorization.

20404213300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12689 (or 12682 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20404213300 its reverse (331240402), we get a palindrome (20735453702).

The spelling of 20404213300 in words is "twenty billion, four hundred four million, two hundred thirteen thousand, three hundred".