2256458 has 8 divisors (see below), whose sum is σ = 3392928. Its totient is φ = 1125484.

The previous prime is 2256437. The next prime is 2256467. The reversal of 2256458 is 8546522.

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

It is a d-powerful number, because it can be written as 2¹³ + 2¹⁵ + 5 + 6³ + 4⁹ + 5⁹ + 8 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116 + ... + 2127.

It is an arithmetic number, because the mean of its divisors is an integer number (424116).

2^2256458 is an apocalyptic number.

2256458 is a deficient number, since it is larger than the sum of its proper divisors (1136470).

2256458 is a wasteful number, since it uses less digits than its factorization.

2256458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748.

The product of its digits is 19200, while the sum is 32.

The square root of 2256458 is about 1502.1511242215. The cubic root of 2256458 is about 131.1623184593.

Subtracting 2256458 from its reverse (8546522), we obtain a square (6290064 = 2508²).

It can be divided in two parts, 22564 and 58, that added together give a palindrome (22622).

The spelling of 2256458 in words is "two million, two hundred fifty-six thousand, four hundred fifty-eight".