2558668 has 12 divisors (see below), whose sum is σ = 5117392. Its totient is φ = 1096560.

The previous prime is 2558639. The next prime is 2558671. The reversal of 2558668 is 8668552.

2558668 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2558668.

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, 45663 + ... + 45718.

2^2558668 is an apocalyptic number.

2558668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2558668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2558668 is a wasteful number, since it uses less digits than its factorization.

2558668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91392 (or 91390 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 2558668 is about 1599.5836958409. The cubic root of 2558668 is about 136.7743457017.

The spelling of 2558668 in words is "two million, five hundred fifty-eight thousand, six hundred sixty-eight".