2399696 has 40 divisors (see below), whose sum is σ = 5103840. Its totient is φ = 1086336.

The previous prime is 2399687. The next prime is 2399699. The reversal of 2399696 is 6969932.

Its product of digits (157464) is a multiple of the sum of its prime factors (243).

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399699) 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, 17195 + ... + 17333.

It is an arithmetic number, because the mean of its divisors is an integer number (127596).

2^2399696 is an apocalyptic number.

2399696 is a gapful number since it is divisible by the number (26) 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 2399696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2551920).

2399696 is an abundant number, since it is smaller than the sum of its proper divisors (2704144).

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

2399696 is a wasteful number, since it uses less digits than its factorization.

2399696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 237 counting only the distinct ones).

The product of its digits is 157464, while the sum is 44.

The square root of 2399696 is about 1549.0952197977. The cubic root of 2399696 is about 133.8809367884.

The spelling of 2399696 in words is "two million, three hundred ninety-nine thousand, six hundred ninety-six".