2438256 has 40 divisors (see below), whose sum is σ = 6388480. Its totient is φ = 801216.

The previous prime is 2438239. The next prime is 2438281. The reversal of 2438256 is 6528342.

It is a d-powerful number, because it can be written as 2⁵ + 4⁸ + 3⁹ + 8⁷ + 2¹⁷ + 5⁷ + 6⁶ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3471 + ... + 4113.

It is an arithmetic number, because the mean of its divisors is an integer number (159712).

2^2438256 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 2438256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3194240).

2438256 is an abundant number, since it is smaller than the sum of its proper divisors (3950224).

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

2438256 is a wasteful number, since it uses less digits than its factorization.

2438256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 727 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 2438256 is about 1561.4915945979. The cubic root of 2438256 is about 134.5942273981.

The spelling of 2438256 in words is "two million, four hundred thirty-eight thousand, two hundred fifty-six".