2390239 has 8 divisors (see below), whose sum is σ = 2450880. Its totient is φ = 2330496.

The previous prime is 2390221. The next prime is 2390243. The reversal of 2390239 is 9320932.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2390239 - 2⁵ = 2390207 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9882 + ... + 10120.

It is an arithmetic number, because the mean of its divisors is an integer number (306360).

2^2390239 is an apocalyptic number.

2390239 is a deficient number, since it is larger than the sum of its proper divisors (60641).

2390239 is a wasteful number, since it uses less digits than its factorization.

2390239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 2390239 is about 1546.0397795658. The cubic root of 2390239 is about 133.7048340815.

The spelling of 2390239 in words is "two million, three hundred ninety thousand, two hundred thirty-nine".