3904221884 has 24 divisors (see below), whose sum is σ = 7025130000. Its totient is φ = 1897397120.

The previous prime is 3904221863. The next prime is 3904221943. The reversal of 3904221884 is 4881224093.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134 + ... + 88365.

It is an arithmetic number, because the mean of its divisors is an integer number (292713750).

Almost surely, 2^3904221884 is an apocalyptic number.

It is an amenable number.

3904221884 is a deficient number, since it is larger than the sum of its proper divisors (3120908116).

3904221884 is a wasteful number, since it uses less digits than its factorization.

3904221884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88813 (or 88811 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 3904221884 is about 62483.7729654668. The cubic root of 3904221884 is about 1574.6287034729.

The spelling of 3904221884 in words is "three billion, nine hundred four million, two hundred twenty-one thousand, eight hundred eighty-four".