2668439080 has 128 divisors (see below), whose sum is σ = 6444748800. Its totient is φ = 992563200.

The previous prime is 2668438991. The next prime is 2668439101. The reversal of 2668439080 is 809348662.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2668439080.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3710961 + ... + 3711679.

It is an arithmetic number, because the mean of its divisors is an integer number (50349600).

Almost surely, 2^2668439080 is an apocalyptic number.

2668439080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2668439080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3222374400).

2668439080 is an abundant number, since it is smaller than the sum of its proper divisors (3776309720).

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

2668439080 is a wasteful number, since it uses less digits than its factorization.

2668439080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 2668439080 is about 51656.9364170970. The cubic root of 2668439080 is about 1387.0297113508.

The spelling of 2668439080 in words is "two billion, six hundred sixty-eight million, four hundred thirty-nine thousand, eighty".