2168992 has 48 divisors (see below), whose sum is σ = 5104512. Its totient is φ = 887040.

The previous prime is 2168989. The next prime is 2169007. The reversal of 2168992 is 2998612.

2168992 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4942 + ... + 5362.

It is an arithmetic number, because the mean of its divisors is an integer number (106344).

2^2168992 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 2168992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2552256).

2168992 is an abundant number, since it is smaller than the sum of its proper divisors (2935520).

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

2168992 is a wasteful number, since it uses less digits than its factorization.

2168992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 453 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 2168992 is about 1472.7498090307. The cubic root of 2168992 is about 129.4452096996.

It can be divided in two parts, 2168 and 992, that added together give a triangular number (3160 = T₇₉).

The spelling of 2168992 in words is "two million, one hundred sixty-eight thousand, nine hundred ninety-two".