3115904 has 32 divisors (see below), whose sum is σ = 6774840. Its totient is φ = 1415680.

The previous prime is 3115897. The next prime is 3115907. The reversal of 3115904 is 4095113.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3115904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302 + ... + 2514.

Almost surely, 2^3115904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3115904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3387420).

3115904 is an abundant number, since it is smaller than the sum of its proper divisors (3658936).

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

3115904 is a wasteful number, since it uses less digits than its factorization.

3115904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238 (or 2226 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 3115904 is about 1765.1923407946. The cubic root of 3115904 is about 146.0588991106.

The spelling of 3115904 in words is "three million, one hundred fifteen thousand, nine hundred four".