904478013940 has 96 divisors (see below), whose sum is σ = 1938080672640. Its totient is φ = 354494693376.

The previous prime is 904478013913. The next prime is 904478013977. The reversal of 904478013940 is 49310874409.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255572691 + ... + 255576229.

It is an arithmetic number, because the mean of its divisors is an integer number (20188340340).

Almost surely, 2^904478013940 is an apocalyptic number.

It is an amenable number.

904478013940 is an abundant number, since it is smaller than the sum of its proper divisors (1033602658700).

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

904478013940 is a wasteful number, since it uses less digits than its factorization.

904478013940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4721 (or 4719 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 904478013940 in words is "nine hundred four billion, four hundred seventy-eight million, thirteen thousand, nine hundred forty".