2258916 has 48 divisors (see below), whose sum is σ = 5839680. Its totient is φ = 673920.

The previous prime is 2258903. The next prime is 2258917. The reversal of 2258916 is 6198522.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2258917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14310 + ... + 14466.

It is an arithmetic number, because the mean of its divisors is an integer number (121660).

2^2258916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2258916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2919840).

2258916 is an abundant number, since it is smaller than the sum of its proper divisors (3580764).

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

2258916 is a wasteful number, since it uses less digits than its factorization.

2258916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 282 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 2258916 is about 1502.9690615578. The cubic root of 2258916 is about 131.2099269953.

The spelling of 2258916 in words is "two million, two hundred fifty-eight thousand, nine hundred sixteen".