2290788 has 24 divisors (see below), whose sum is σ = 5939360. Its totient is φ = 763560.

The previous prime is 2290751. The next prime is 2290789. The reversal of 2290788 is 8870922.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2290789) 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, 10498 + ... + 10713.

2^2290788 is an apocalyptic number.

It is an amenable number.

2290788 is an abundant number, since it is smaller than the sum of its proper divisors (3648572).

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

2290788 is a wasteful number, since it uses less digits than its factorization.

2290788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21224 (or 21216 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2290788 is about 1513.5349351766. The cubic root of 2290788 is about 131.8241459918.

The spelling of 2290788 in words is "two million, two hundred ninety thousand, seven hundred eighty-eight".