20403301344 has 24 divisors (see below), whose sum is σ = 53558666280. Its totient is φ = 6801100416.

The previous prime is 20403301337. The next prime is 20403301379. The reversal of 20403301344 is 44310330402.

It is a tau number, because it is divible by the number of its divisors (24).

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106267099 + ... + 106267290.

It is an arithmetic number, because the mean of its divisors is an integer number (2231611095).

Almost surely, 2^20403301344 is an apocalyptic number.

20403301344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20403301344 is an abundant number, since it is smaller than the sum of its proper divisors (33155364936).

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

20403301344 is a wasteful number, since it uses less digits than its factorization.

20403301344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212534402 (or 212534394 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20403301344 its reverse (44310330402), we get a palindrome (64713631746).

The spelling of 20403301344 in words is "twenty billion, four hundred three million, three hundred one thousand, three hundred forty-four".