2809264 has 20 divisors (see below), whose sum is σ = 5730040. Its totient is φ = 1330560.

The previous prime is 2809253. The next prime is 2809271. The reversal of 2809264 is 4629082.

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, 4317 + ... + 4924.

It is an arithmetic number, because the mean of its divisors is an integer number (286502).

2^2809264 is an apocalyptic number.

It is an amenable number.

2809264 is an abundant number, since it is smaller than the sum of its proper divisors (2920776).

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

2809264 is a wasteful number, since it uses less digits than its factorization.

2809264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9268 (or 9262 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 2809264 is about 1676.0859166522. The cubic root of 2809264 is about 141.1012467989.

The spelling of 2809264 in words is "two million, eight hundred nine thousand, two hundred sixty-four".