2288556 has 36 divisors (see below), whose sum is σ = 5837104. Its totient is φ = 756000.

The previous prime is 2288527. The next prime is 2288563. The reversal of 2288556 is 6558822.

2288556 is a `hidden beast` number, since 22 + 88 + 556 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2288556.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5226 + ... + 5646.

2^2288556 is an apocalyptic number.

It is an amenable number.

2288556 is an abundant number, since it is smaller than the sum of its proper divisors (3548548).

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

2288556 is a wasteful number, since it uses less digits than its factorization.

2288556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 577 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 2288556 is about 1512.7974087762. The cubic root of 2288556 is about 131.7813183555.

The spelling of 2288556 in words is "two million, two hundred eighty-eight thousand, five hundred fifty-six".