2257618 has 24 divisors (see below), whose sum is σ = 3926160. Its totient is φ = 970200.

The previous prime is 2257609. The next prime is 2257639. The reversal of 2257618 is 8167522.

It is a self number, because there is not a number n which added to its sum of digits gives 2257618.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4353 + ... + 4843.

It is an arithmetic number, because the mean of its divisors is an integer number (163590).

2^2257618 is an apocalyptic number.

2257618 is a deficient number, since it is larger than the sum of its proper divisors (1668542).

2257618 is a wasteful number, since it uses less digits than its factorization.

2257618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 523 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 2257618 is about 1502.5371875598. The cubic root of 2257618 is about 131.1847905852.

The spelling of 2257618 in words is "two million, two hundred fifty-seven thousand, six hundred eighteen".