2258618 has 8 divisors (see below), whose sum is σ = 3466848. Its totient is φ = 1103004.

The previous prime is 2258617. The next prime is 2258621. The reversal of 2258618 is 8168522.

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 2¹⁹ + 2²⁰ + 5⁸ + 8⁵ + 6³ + 1 + 8⁶ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2258617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13046 + ... + 13217.

It is an arithmetic number, because the mean of its divisors is an integer number (433356).

2^2258618 is an apocalyptic number.

2258618 is a deficient number, since it is larger than the sum of its proper divisors (1208230).

2258618 is a wasteful number, since it uses less digits than its factorization.

2258618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26308.

The product of its digits is 7680, while the sum is 32.

The square root of 2258618 is about 1502.8699211841. The cubic root of 2258618 is about 131.2041569301.

The spelling of 2258618 in words is "two million, two hundred fifty-eight thousand, six hundred eighteen".