20442402404 has 24 divisors (see below), whose sum is σ = 38458277760. Its totient is φ = 9477215136.

The previous prime is 20442402397. The next prime is 20442402433. The reversal of 20442402404 is 40420424402.

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, 2857907 + ... + 2865050.

It is an arithmetic number, because the mean of its divisors is an integer number (1602428240).

Almost surely, 2^20442402404 is an apocalyptic number.

It is an amenable number.

20442402404 is a deficient number, since it is larger than the sum of its proper divisors (18015875356).

20442402404 is a wasteful number, since it uses less digits than its factorization.

20442402404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5723027 (or 5723025 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20442402404 its reverse (40420424402), we get a palindrome (60862826806).

The spelling of 20442402404 in words is "twenty billion, four hundred forty-two million, four hundred two thousand, four hundred four".