1904133816 has 72 divisors (see below), whose sum is σ = 5584274280. Its totient is φ = 585883584.

The previous prime is 1904133797. The next prime is 1904133851. The reversal of 1904133816 is 6183314091.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 66076 + ... + 90411.

It is an arithmetic number, because the mean of its divisors is an integer number (77559365).

Almost surely, 2^1904133816 is an apocalyptic number.

It is an amenable number.

1904133816 is an abundant number, since it is smaller than the sum of its proper divisors (3680140464).

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

1904133816 is a wasteful number, since it uses less digits than its factorization.

1904133816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156525 (or 156505 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1904133816 is about 43636.3817931780. The cubic root of 1904133816 is about 1239.4599226272.

The spelling of 1904133816 in words is "one billion, nine hundred four million, one hundred thirty-three thousand, eight hundred sixteen".