20413330400 has 36 divisors (see below), whose sum is σ = 49834044792. Its totient is φ = 8165331840.

The previous prime is 20413330349. The next prime is 20413330417. The reversal of 20413330400 is 403331402.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 12757532 + ... + 12759131.

It is an arithmetic number, because the mean of its divisors is an integer number (1384279022).

Almost surely, 2^20413330400 is an apocalyptic number.

20413330400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20413330400 is an abundant number, since it is smaller than the sum of its proper divisors (29420714392).

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

20413330400 is a wasteful number, since it uses less digits than its factorization.

20413330400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25516683 (or 25516670 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20413330400 its reverse (403331402), we get a palindrome (20816661802).

The spelling of 20413330400 in words is "twenty billion, four hundred thirteen million, three hundred thirty thousand, four hundred".