2399425 has 12 divisors (see below), whose sum is σ = 3400576. Its totient is φ = 1645200.

The previous prime is 2399407. The next prime is 2399461. The reversal of 2399425 is 5249932.

It is not a de Polignac number, because 2399425 - 2⁷ = 2399297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6681 + ... + 7030.

2^2399425 is an apocalyptic number.

2399425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2399425 is a deficient number, since it is larger than the sum of its proper divisors (1001151).

2399425 is a wasteful number, since it uses less digits than its factorization.

2399425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13728 (or 13723 counting only the distinct ones).

The product of its digits is 19440, while the sum is 34.

The square root of 2399425 is about 1549.0077469141. The cubic root of 2399425 is about 133.8758968306.

The spelling of 2399425 in words is "two million, three hundred ninety-nine thousand, four hundred twenty-five".