2258438 has 16 divisors (see below), whose sum is σ = 4169760. Its totient is φ = 893376.

The previous prime is 2258437. The next prime is 2258447. The reversal of 2258438 is 8348522.

It is a d-powerful number, because it can be written as 2¹⁵ + 2²¹ + 5⁷ + 8³ + 4⁷ + 3⁶ + 8⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6023 + ... + 6386.

It is an arithmetic number, because the mean of its divisors is an integer number (260610).

2^2258438 is an apocalyptic number.

2258438 is a deficient number, since it is larger than the sum of its proper divisors (1911322).

2258438 is a wasteful number, since it uses less digits than its factorization.

2258438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12431.

The product of its digits is 15360, while the sum is 32.

The square root of 2258438 is about 1502.8100345686. The cubic root of 2258438 is about 131.2006714099.

It can be divided in two parts, 22584 and 38, that added together give a palindrome (22622).

The spelling of 2258438 in words is "two million, two hundred fifty-eight thousand, four hundred thirty-eight".