2190788 has 12 divisors (see below), whose sum is σ = 3899280. Its totient is φ = 1076712.

The previous prime is 2190763. The next prime is 2190809. The reversal of 2190788 is 8870912.

It is a happy 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, 4406 + ... + 4877.

It is an arithmetic number, because the mean of its divisors is an integer number (324940).

2^2190788 is an apocalyptic number.

It is an amenable number.

2190788 is a deficient number, since it is larger than the sum of its proper divisors (1708492).

2190788 is a wasteful number, since it uses less digits than its factorization.

2190788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9346 (or 9344 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 2190788 is about 1480.1310752768. The cubic root of 2190788 is about 129.8773596843.

It can be divided in two parts, 21 and 90788, that added together give a palindrome (90809).

The spelling of 2190788 in words is "two million, one hundred ninety thousand, seven hundred eighty-eight".