2218992 has 20 divisors (see below), whose sum is σ = 5732520. Its totient is φ = 739648.

The previous prime is 2218969. The next prime is 2218999. The reversal of 2218992 is 2998122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23067 + ... + 23162.

It is an arithmetic number, because the mean of its divisors is an integer number (286626).

2^2218992 is an apocalyptic number.

It is an amenable number.

2218992 is an abundant number, since it is smaller than the sum of its proper divisors (3513528).

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

2218992 is a wasteful number, since it uses less digits than its factorization.

2218992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46240 (or 46234 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 2218992 is about 1489.6281415172. The cubic root of 2218992 is about 130.4323279152.

The spelling of 2218992 in words is "two million, two hundred eighteen thousand, nine hundred ninety-two".