2805172 has 12 divisors (see below), whose sum is σ = 5122656. Its totient is φ = 1341560.

The previous prime is 2805169. The next prime is 2805181. The reversal of 2805172 is 2715082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15154 + ... + 15337.

It is an arithmetic number, because the mean of its divisors is an integer number (426888).

2^2805172 is an apocalyptic number.

It is an amenable number.

2805172 is a deficient number, since it is larger than the sum of its proper divisors (2317484).

2805172 is a wasteful number, since it uses less digits than its factorization.

2805172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30518 (or 30516 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2805172 is about 1674.8647706606. The cubic root of 2805172 is about 141.0327037130.

The spelling of 2805172 in words is "two million, eight hundred five thousand, one hundred seventy-two".