3161904 has 40 divisors (see below), whose sum is σ = 8600640. Its totient is φ = 998208.

The previous prime is 3161897. The next prime is 3161953. The reversal of 3161904 is 4091613.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a zygodrome in base 2.

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, 822 + ... + 2645.

It is an arithmetic number, because the mean of its divisors is an integer number (215016).

Almost surely, 2^3161904 is an apocalyptic number.

It is an amenable number.

3161904 is an abundant number, since it is smaller than the sum of its proper divisors (5438736).

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

3161904 is a wasteful number, since it uses less digits than its factorization.

3161904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497 (or 3491 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 3161904 is about 1778.1743446580. The cubic root of 3161904 is about 146.7741452783.

The spelling of 3161904 in words is "three million, one hundred sixty-one thousand, nine hundred four".