2398881 has 8 divisors (see below), whose sum is σ = 3252960. Its totient is φ = 1572032.

The previous prime is 2398867. The next prime is 2398889. The reversal of 2398881 is 1888932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2398881 - 2⁵ = 2398849 is a prime.

It is a super-2 number, since 2×2398881² = 11509260104322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2398889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6600 + ... + 6953.

It is an arithmetic number, because the mean of its divisors is an integer number (406620).

2^2398881 is an apocalyptic number.

It is an amenable number.

2398881 is a deficient number, since it is larger than the sum of its proper divisors (854079).

2398881 is a wasteful number, since it uses less digits than its factorization.

2398881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13615.

The product of its digits is 27648, while the sum is 39.

The square root of 2398881 is about 1548.8321406789. The cubic root of 2398881 is about 133.8657785741.

The spelling of 2398881 in words is "two million, three hundred ninety-eight thousand, eight hundred eighty-one".