20203028904 has 16 divisors (see below), whose sum is σ = 50507572320. Its totient is φ = 6734342960.

The previous prime is 20203028893. The next prime is 20203028957. The reversal of 20203028904 is 40982030202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420896412 + ... + 420896459.

It is an arithmetic number, because the mean of its divisors is an integer number (3156723270).

Almost surely, 2^20203028904 is an apocalyptic number.

20203028904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20203028904 is an abundant number, since it is smaller than the sum of its proper divisors (30304543416).

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

20203028904 is a wasteful number, since it uses less digits than its factorization.

20203028904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841792880 (or 841792876 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 20203028904 in words is "twenty billion, two hundred three million, twenty-eight thousand, nine hundred four".