2398688 has 12 divisors (see below), whose sum is σ = 4722480. Its totient is φ = 1199328.

The previous prime is 2398681. The next prime is 2398699. The reversal of 2398688 is 8868932.

It is a super-4 number, since 4×2398688⁴ (a number of 27 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2398681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37448 + ... + 37511.

It is an arithmetic number, because the mean of its divisors is an integer number (393540).

2^2398688 is an apocalyptic number.

It is an amenable number.

2398688 is a deficient number, since it is larger than the sum of its proper divisors (2323792).

2398688 is an equidigital number, since it uses as much as digits as its factorization.

2398688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74969 (or 74961 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 2398688 is about 1548.7698344170. The cubic root of 2398688 is about 133.8621884574.

The spelling of 2398688 in words is "two million, three hundred ninety-eight thousand, six hundred eighty-eight".