2398257 has 12 divisors (see below), whose sum is σ = 3477760. Its totient is φ = 1592568.

The previous prime is 2398247. The next prime is 2398259. The reversal of 2398257 is 7528932.

It is a happy number.

It is not a de Polignac number, because 2398257 - 2⁸ = 2398001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2398259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3648 + ... + 4254.

2^2398257 is an apocalyptic number.

It is an amenable number.

2398257 is a deficient number, since it is larger than the sum of its proper divisors (1079503).

2398257 is a wasteful number, since it uses less digits than its factorization.

2398257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 1049 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 2398257 is about 1548.6306854767. The cubic root of 2398257 is about 133.8541704549.

The spelling of 2398257 in words is "two million, three hundred ninety-eight thousand, two hundred fifty-seven".