2258816 has 32 divisors (see below), whose sum is σ = 5144880. Its totient is φ = 967680.

The previous prime is 2258803. The next prime is 2258819. The reversal of 2258816 is 6188522.

2258816 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

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 3 ways as a sum of consecutive naturals, for example, 365 + ... + 2156.

2^2258816 is an apocalyptic number.

It is an amenable number.

2258816 is an abundant number, since it is smaller than the sum of its proper divisors (2886064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2258816 is an equidigital number, since it uses as much as digits as its factorization.

2258816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542 (or 2530 counting only the distinct ones).

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

The square root of 2258816 is about 1502.9357937051. The cubic root of 2258816 is about 131.2079907883.

The spelling of 2258816 in words is "two million, two hundred fifty-eight thousand, eight hundred sixteen".