2391290880 has 176 divisors, whose sum is σ = 8344292544. Its totient is φ = 579665920.

The previous prime is 2391290879. The next prime is 2391290897. The reversal of 2391290880 is 880921932.

It is a tau number, because it is divible by the number of its divisors (176).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161884 + ... + 176036.

Almost surely, 2^2391290880 is an apocalyptic number.

2391290880 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 2391290880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4172146272).

2391290880 is an abundant number, since it is smaller than the sum of its proper divisors (5953001664).

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

2391290880 is a wasteful number, since it uses less digits than its factorization.

2391290880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14192 (or 14174 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 2391290880 is about 48900.8269868721. The cubic root of 2391290880 is about 1337.2444450749.

The spelling of 2391290880 in words is "two billion, three hundred ninety-one million, two hundred ninety thousand, eight hundred eighty".