20202396400 has 30 divisors (see below), whose sum is σ = 48536258312. Its totient is φ = 8080958400.

The previous prime is 20202396391. The next prime is 20202396421. The reversal of 20202396400 is 469320202.

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, 25252596 + ... + 25253395.

Almost surely, 2^20202396400 is an apocalyptic number.

20202396400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202396400 is an abundant number, since it is smaller than the sum of its proper divisors (28333861912).

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

20202396400 is a wasteful number, since it uses less digits than its factorization.

20202396400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50506009 (or 50505998 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 20202396400 in words is "twenty billion, two hundred two million, three hundred ninety-six thousand, four hundred".