2288916 has 72 divisors (see below), whose sum is σ = 6849024. Its totient is φ = 630720.

The previous prime is 2288893. The next prime is 2288927. The reversal of 2288916 is 6198822.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7666 + ... + 7958.

2^2288916 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 2288916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3424512).

2288916 is an abundant number, since it is smaller than the sum of its proper divisors (4560108).

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

2288916 is a wasteful number, since it uses less digits than its factorization.

2288916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 336 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2288916 is about 1512.9163889654. The cubic root of 2288916 is about 131.7882279217.

The spelling of 2288916 in words is "two million, two hundred eighty-eight thousand, nine hundred sixteen".