2812456 has 16 divisors (see below), whose sum is σ = 5551200. Its totient is φ = 1332144.

The previous prime is 2812451. The next prime is 2812493. The reversal of 2812456 is 6542182.

It is not an unprimeable number, because it can be changed into a prime (2812451) 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, 9100 + ... + 9403.

It is an arithmetic number, because the mean of its divisors is an integer number (346950).

2^2812456 is an apocalyptic number.

It is an amenable number.

2812456 is a deficient number, since it is larger than the sum of its proper divisors (2738744).

2812456 is a wasteful number, since it uses less digits than its factorization.

2812456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18528 (or 18524 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 2812456 is about 1677.0378648081. The cubic root of 2812456 is about 141.1546682290.

The spelling of 2812456 in words is "two million, eight hundred twelve thousand, four hundred fifty-six".