3804081918 has 64 divisors (see below), whose sum is σ = 9771052032. Its totient is φ = 959650560.

The previous prime is 3804081901. The next prime is 3804081923. The reversal of 3804081918 is 8191804083.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 3804081918.

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, 138903 + ... + 164018.

It is an arithmetic number, because the mean of its divisors is an integer number (152672688).

Almost surely, 2^3804081918 is an apocalyptic number.

3804081918 is an abundant number, since it is smaller than the sum of its proper divisors (5966970114).

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

3804081918 is a wasteful number, since it uses less digits than its factorization.

3804081918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302969.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 3804081918 is about 61677.2398701498. The cubic root of 3804081918 is about 1561.0493047304.

The spelling of 3804081918 in words is "three billion, eight hundred four million, eighty-one thousand, nine hundred eighteen".