2399880 has 64 divisors (see below), whose sum is σ = 8231040. Its totient is φ = 548352.

The previous prime is 2399869. The next prime is 2399897. The reversal of 2399880 is 889932.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 589 + ... + 2268.

It is an arithmetic number, because the mean of its divisors is an integer number (128610).

2^2399880 is an apocalyptic number.

2399880 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 2399880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4115520).

2399880 is an abundant number, since it is smaller than the sum of its proper divisors (5831160).

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

2399880 is a wasteful number, since it uses less digits than its factorization.

2399880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878 (or 2874 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 2399880 is about 1549.1546081654. The cubic root of 2399880 is about 133.8843585361.

The spelling of 2399880 in words is "two million, three hundred ninety-nine thousand, eight hundred eighty".