2180249218 has 48 divisors (see below), whose sum is σ = 4035196440. Its totient is φ = 877879296.

The previous prime is 2180249213. The next prime is 2180249219. The reversal of 2180249218 is 8129420812.

It is a happy number.

2180249218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2179302489 + 946729 = 46683^2 + 973^2 .

It is a super-2 number, since 2×2180249218² = 9506973305179223048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2180249213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1680346 + ... + 1681642.

Almost surely, 2^2180249218 is an apocalyptic number.

2180249218 is a deficient number, since it is larger than the sum of its proper divisors (1854947222).

2180249218 is a wasteful number, since it uses less digits than its factorization.

2180249218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339 (or 2332 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 2180249218 is about 46693.1388749996. The cubic root of 2180249218 is about 1296.6876657326.

The spelling of 2180249218 in words is "two billion, one hundred eighty million, two hundred forty-nine thousand, two hundred eighteen".