2399015 has 12 divisors (see below), whose sum is σ = 3012744. Its totient is φ = 1833744.

The previous prime is 2399011. The next prime is 2399017. The reversal of 2399015 is 5109932.

2399015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2399015 - 2² = 2399011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2192 + ... + 3098.

It is an arithmetic number, because the mean of its divisors is an integer number (251062).

2^2399015 is an apocalyptic number.

2399015 is a deficient number, since it is larger than the sum of its proper divisors (613729).

2399015 is an equidigital number, since it uses as much as digits as its factorization.

2399015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 2399015 is about 1548.8753984746. The cubic root of 2399015 is about 133.8682710807.

The spelling of 2399015 in words is "two million, three hundred ninety-nine thousand, fifteen".