2149218 has 24 divisors (see below), whose sum is σ = 4695600. Its totient is φ = 710424.

The previous prime is 2149211. The next prime is 2149237. The reversal of 2149218 is 8129412.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2149191 and 2149200.

It is not an unprimeable number, because it can be changed into a prime (2149211) 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, 2073 + ... + 2931.

It is an arithmetic number, because the mean of its divisors is an integer number (195650).

2^2149218 is an apocalyptic number.

2149218 is an abundant number, since it is smaller than the sum of its proper divisors (2546382).

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

2149218 is a wasteful number, since it uses less digits than its factorization.

2149218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006 (or 1003 counting only the distinct ones).

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

The square root of 2149218 is about 1466.0211458229. The cubic root of 2149218 is about 129.0506381331.

The spelling of 2149218 in words is "two million, one hundred forty-nine thousand, two hundred eighteen".