20403023404 has 24 divisors (see below), whose sum is σ = 36323254800. Its totient is φ = 10025072640.

The previous prime is 20403023321. The next prime is 20403023419. The reversal of 20403023404 is 40432030402.

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, 734244 + ... + 761524.

It is an arithmetic number, because the mean of its divisors is an integer number (1513468950).

Almost surely, 2^20403023404 is an apocalyptic number.

It is an amenable number.

20403023404 is a deficient number, since it is larger than the sum of its proper divisors (15920231396).

20403023404 is a wasteful number, since it uses less digits than its factorization.

20403023404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30513 (or 30511 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20403023404 its reverse (40432030402), we get a palindrome (60835053806).

The spelling of 20403023404 in words is "twenty billion, four hundred three million, twenty-three thousand, four hundred four".