1009982218 has 24 divisors (see below), whose sum is σ = 1763490852. Its totient is φ = 432561024.

The previous prime is 1009982209. The next prime is 1009982219. The reversal of 1009982218 is 8122899001.

It can be written as a sum of positive squares in 2 ways, for example, as 991809049 + 18173169 = 31493^2 + 4263^2 .

It is not an unprimeable number, because it can be changed into a prime (1009982219) 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, 214546 + ... + 219202.

Almost surely, 2^1009982218 is an apocalyptic number.

1009982218 is a deficient number, since it is larger than the sum of its proper divisors (753508634).

1009982218 is a wasteful number, since it uses less digits than its factorization.

1009982218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886 (or 6879 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 1009982218 is about 31780.2174001375. The cubic root of 1009982218 is about 1003.3163953634.

The spelling of 1009982218 in words is "one billion, nine million, nine hundred eighty-two thousand, two hundred eighteen".