2257258 has 4 divisors (see below), whose sum is σ = 3385890. Its totient is φ = 1128628.

The previous prime is 2257247. The next prime is 2257291. The reversal of 2257258 is 8527522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8527522 = 2 ⋅4263761.

It can be written as a sum of positive squares in only one way, i.e., 1912689 + 344569 = 1383^2 + 587^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564313 + ... + 564316.

2^2257258 is an apocalyptic number.

2257258 is a deficient number, since it is larger than the sum of its proper divisors (1128632).

2257258 is a wasteful number, since it uses less digits than its factorization.

2257258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128631.

The product of its digits is 11200, while the sum is 31.

The square root of 2257258 is about 1502.4173854159. The cubic root of 2257258 is about 131.1778173011.

The spelling of 2257258 in words is "two million, two hundred fifty-seven thousand, two hundred fifty-eight".