2500668 has 18 divisors (see below), whose sum is σ = 6321224. Its totient is φ = 833544.

The previous prime is 2500651. The next prime is 2500669. The reversal of 2500668 is 8660052.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34696 + ... + 34767.

2^2500668 is an apocalyptic number.

It is an amenable number.

2500668 is an abundant number, since it is smaller than the sum of its proper divisors (3820556).

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

2500668 is a wasteful number, since it uses less digits than its factorization.

2500668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69473 (or 69468 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2500668 is about 1581.3500561229. The cubic root of 2500668 is about 135.7329679597.

The spelling of 2500668 in words is "two million, five hundred thousand, six hundred sixty-eight".