2805724 has 12 divisors (see below), whose sum is σ = 5123664. Its totient is φ = 1341824.

The previous prime is 2805713. The next prime is 2805757. The reversal of 2805724 is 4275082.

It is a junction number, because it is equal to n+sod(n) for n = 2805692 and 2805701.

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, 15157 + ... + 15340.

It is an arithmetic number, because the mean of its divisors is an integer number (426972).

2^2805724 is an apocalyptic number.

It is an amenable number.

2805724 is a deficient number, since it is larger than the sum of its proper divisors (2317940).

2805724 is a wasteful number, since it uses less digits than its factorization.

2805724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30524 (or 30522 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 2805724 is about 1675.0295519781. The cubic root of 2805724 is about 141.0419538821.

The spelling of 2805724 in words is "two million, eight hundred five thousand, seven hundred twenty-four".