2198992 has 10 divisors (see below), whose sum is σ = 4260578. Its totient is φ = 1099488.

The previous prime is 2198981. The next prime is 2199061. The reversal of 2198992 is 2998912.

It can be written as a sum of positive squares in only one way, i.e., 2143296 + 55696 = 1464^2 + 236^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68703 + ... + 68734.

2^2198992 is an apocalyptic number.

It is an amenable number.

2198992 is a deficient number, since it is larger than the sum of its proper divisors (2061586).

2198992 is a wasteful number, since it uses less digits than its factorization.

2198992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137445 (or 137439 counting only the distinct ones).

The product of its digits is 23328, while the sum is 40.

The square root of 2198992 is about 1482.8998617574. The cubic root of 2198992 is about 130.0392780722.

The spelling of 2198992 in words is "two million, one hundred ninety-eight thousand, nine hundred ninety-two".