2398251 has 4 divisors (see below), whose sum is σ = 3197672. Its totient is φ = 1598832.

The previous prime is 2398247. The next prime is 2398259. The reversal of 2398251 is 1528932.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2398251 - 2² = 2398247 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 399706 + ... + 399711.

It is an arithmetic number, because the mean of its divisors is an integer number (799418).

2^2398251 is an apocalyptic number.

2398251 is a deficient number, since it is larger than the sum of its proper divisors (799421).

2398251 is an equidigital number, since it uses as much as digits as its factorization.

2398251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799420.

The product of its digits is 4320, while the sum is 30.

The square root of 2398251 is about 1548.6287482802. The cubic root of 2398251 is about 133.8540588286.

The spelling of 2398251 in words is "two million, three hundred ninety-eight thousand, two hundred fifty-one".