2390256 has 80 divisors (see below), whose sum is σ = 7499520. Its totient is φ = 722880.

The previous prime is 2390249. The next prime is 2390263. The reversal of 2390256 is 6520932.

2390256 is nontrivially palindromic in base 5.

It is an interprime number because it is at equal distance from previous prime (2390249) and next prime (2390263).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4501 + ... + 5003.

It is an arithmetic number, because the mean of its divisors is an integer number (93744).

2^2390256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2390256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3749760).

2390256 is an abundant number, since it is smaller than the sum of its proper divisors (5109264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2390256 is a wasteful number, since it uses less digits than its factorization.

2390256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 2390256 is about 1546.0452774741. The cubic root of 2390256 is about 133.7051510619.

The spelling of 2390256 in words is "two million, three hundred ninety thousand, two hundred fifty-six".