2118992 has 10 divisors (see below), whose sum is σ = 4105578. Its totient is φ = 1059488.

The previous prime is 2118973. The next prime is 2119031. The reversal of 2118992 is 2998112.

It is a happy number.

2118992 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in only one way, i.e., 2085136 + 33856 = 1444^2 + 184^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66203 + ... + 66234.

2^2118992 is an apocalyptic number.

It is an amenable number.

2118992 is a deficient number, since it is larger than the sum of its proper divisors (1986586).

2118992 is a wasteful number, since it uses less digits than its factorization.

2118992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132445 (or 132439 counting only the distinct ones).

The product of its digits is 2592, while the sum is 32.

The square root of 2118992 is about 1455.6757880792. The cubic root of 2118992 is about 128.4428023436.

The spelling of 2118992 in words is "two million, one hundred eighteen thousand, nine hundred ninety-two".