20322322400 has 72 divisors (see below), whose sum is σ = 50821997184. Its totient is φ = 7930649600.

The previous prime is 20322322387. The next prime is 20322322421. The reversal of 20322322400 is 422322302.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276992 + ... + 342591.

It is an arithmetic number, because the mean of its divisors is an integer number (705861072).

Almost surely, 2^20322322400 is an apocalyptic number.

20322322400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20322322400 is an abundant number, since it is smaller than the sum of its proper divisors (30499674784).

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

20322322400 is a wasteful number, since it uses less digits than its factorization.

20322322400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619644 (or 619631 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20322322400 its reverse (422322302), we get a palindrome (20744644702).

The spelling of 20322322400 in words is "twenty billion, three hundred twenty-two million, three hundred twenty-two thousand, four hundred".