2218984 has 8 divisors (see below), whose sum is σ = 4160610. Its totient is φ = 1109488.

The previous prime is 2218969. The next prime is 2218999. The reversal of 2218984 is 4898122.

It is an interprime number because it is at equal distance from previous prime (2218969) and next prime (2218999).

It can be written as a sum of positive squares in only one way, i.e., 1368900 + 850084 = 1170^2 + 922^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138679 + ... + 138694.

2^2218984 is an apocalyptic number.

It is an amenable number.

2218984 is a deficient number, since it is larger than the sum of its proper divisors (1941626).

2218984 is a wasteful number, since it uses less digits than its factorization.

2218984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277379 (or 277375 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 2218984 is about 1489.6254562809. The cubic root of 2218984 is about 130.4321711683.

The spelling of 2218984 in words is "two million, two hundred eighteen thousand, nine hundred eighty-four".