2816556 has 12 divisors (see below), whose sum is σ = 6571992. Its totient is φ = 938848.

The previous prime is 2816549. The next prime is 2816563. The reversal of 2816556 is 6556182.

It is an interprime number because it is at equal distance from previous prime (2816549) and next prime (2816563).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2816556² = 15865975402272, which contains 22 as substring.

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, 117345 + ... + 117368.

It is an arithmetic number, because the mean of its divisors is an integer number (547666).

2^2816556 is an apocalyptic number.

It is an amenable number.

2816556 is an abundant number, since it is smaller than the sum of its proper divisors (3755436).

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

2816556 is a wasteful number, since it uses less digits than its factorization.

2816556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234720 (or 234718 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 2816556 is about 1678.2598130206. The cubic root of 2816556 is about 141.2232267109.

The spelling of 2816556 in words is "two million, eight hundred sixteen thousand, five hundred fifty-six".