2168790 has 64 divisors (see below), whose sum is σ = 5757696. Its totient is φ = 519552.

The previous prime is 2168753. The next prime is 2168797. The reversal of 2168790 is 978612.

2168790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26089 + ... + 26171.

It is an arithmetic number, because the mean of its divisors is an integer number (89964).

2^2168790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2168790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2878848).

2168790 is an abundant number, since it is smaller than the sum of its proper divisors (3588906).

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

2168790 is a wasteful number, since it uses less digits than its factorization.

2168790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2168790 is about 1472.6812282364. The cubic root of 2168790 is about 129.4411911288.

The spelling of 2168790 in words is "two million, one hundred sixty-eight thousand, seven hundred ninety".