2258813 has 8 divisors (see below), whose sum is σ = 2378040. Its totient is φ = 2142720.

The previous prime is 2258803. The next prime is 2258819. The reversal of 2258813 is 3188522.

It can be written as a sum of positive squares in 4 ways, for example, as 77284 + 2181529 = 278^2 + 1477^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2258813 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258819) 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, 773 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (297255).

2^2258813 is an apocalyptic number.

It is an amenable number.

2258813 is a deficient number, since it is larger than the sum of its proper divisors (119227).

2258813 is a wasteful number, since it uses less digits than its factorization.

2258813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567.

The product of its digits is 3840, while the sum is 29.

The square root of 2258813 is about 1502.9347956581. The cubic root of 2258813 is about 131.2079327013.

The spelling of 2258813 in words is "two million, two hundred fifty-eight thousand, eight hundred thirteen".