20432200344 has 32 divisors (see below), whose sum is σ = 51917889840. Its totient is φ = 6699081600.

The previous prime is 20432200337. The next prime is 20432200423. The reversal of 20432200344 is 44300223402.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6976747 + ... + 6979674.

Almost surely, 2^20432200344 is an apocalyptic number.

20432200344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20432200344 is an abundant number, since it is smaller than the sum of its proper divisors (31485689496).

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

20432200344 is a wasteful number, since it uses less digits than its factorization.

20432200344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13956491 (or 13956487 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20432200344 its reverse (44300223402), we get a palindrome (64732423746).

The spelling of 20432200344 in words is "twenty billion, four hundred thirty-two million, two hundred thousand, three hundred forty-four".