2190288 has 20 divisors (see below), whose sum is σ = 5658368. Its totient is φ = 730080.

The previous prime is 2190277. The next prime is 2190299. The reversal of 2190288 is 8820912.

It is an interprime number because it is at equal distance from previous prime (2190277) and next prime (2190299).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22768 + ... + 22863.

2^2190288 is an apocalyptic number.

It is an amenable number.

2190288 is an abundant number, since it is smaller than the sum of its proper divisors (3468080).

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

2190288 is a wasteful number, since it uses less digits than its factorization.

2190288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45642 (or 45636 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 2190288 is about 1479.9621616785. The cubic root of 2190288 is about 129.8674783660.

It can be divided in two parts, 21 and 90288, that added together give a palindrome (90309).

The spelling of 2190288 in words is "two million, one hundred ninety thousand, two hundred eighty-eight".