20338399364 has 24 divisors (see below), whose sum is σ = 37177008960. Its totient is φ = 9723206304.

The previous prime is 20338399351. The next prime is 20338399381. The reversal of 20338399364 is 46399383302.

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, 839174 + ... + 863069.

It is an arithmetic number, because the mean of its divisors is an integer number (1549042040).

Almost surely, 2^20338399364 is an apocalyptic number.

It is an amenable number.

20338399364 is a deficient number, since it is larger than the sum of its proper divisors (16838609596).

20338399364 is a wasteful number, since it uses less digits than its factorization.

20338399364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702379 (or 1702377 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 50.

The spelling of 20338399364 in words is "twenty billion, three hundred thirty-eight million, three hundred ninety-nine thousand, three hundred sixty-four".