1904440612 has 12 divisors (see below), whose sum is σ = 3352728960. Its totient is φ = 946518056.

The previous prime is 1904440553. The next prime is 1904440621. The reversal of 1904440612 is 2160444091.

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, 1424812 + ... + 1426147.

It is an arithmetic number, because the mean of its divisors is an integer number (279394080).

Almost surely, 2^1904440612 is an apocalyptic number.

It is an amenable number.

1904440612 is a deficient number, since it is larger than the sum of its proper divisors (1448288348).

1904440612 is a wasteful number, since it uses less digits than its factorization.

1904440612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851130 (or 2851128 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1904440612 is about 43639.8970209601. The cubic root of 1904440612 is about 1239.5264867384.

The spelling of 1904440612 in words is "one billion, nine hundred four million, four hundred forty thousand, six hundred twelve".