2219418 has 24 divisors (see below), whose sum is σ = 5092308. Its totient is φ = 696192.

The previous prime is 2219411. The next prime is 2219423. The reversal of 2219418 is 8149122.

It can be written as a sum of positive squares in 2 ways, for example, as 2064969 + 154449 = 1437^2 + 393^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2219391 and 2219400.

It is not an unprimeable number, because it can be changed into a prime (2219411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3321 + ... + 3932.

2^2219418 is an apocalyptic number.

2219418 is an abundant number, since it is smaller than the sum of its proper divisors (2872890).

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

2219418 is a wasteful number, since it uses less digits than its factorization.

2219418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7278 (or 7275 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 2219418 is about 1489.7711233609. The cubic root of 2219418 is about 130.4406741397.

The spelling of 2219418 in words is "two million, two hundred nineteen thousand, four hundred eighteen".