1064783218 has 12 divisors (see below), whose sum is σ = 1685662110. Its totient is φ = 504370656.

The previous prime is 1064783191. The next prime is 1064783221. The reversal of 1064783218 is 8123874601.

It can be written as a sum of positive squares in only one way, i.e., 776904129 + 287879089 = 27873^2 + 16967^2 .

It is a super-2 number, since 2×1064783218² = 2267526602668871048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 736663 + ... + 738106.

Almost surely, 2^1064783218 is an apocalyptic number.

1064783218 is a deficient number, since it is larger than the sum of its proper divisors (620878892).

1064783218 is a wasteful number, since it uses less digits than its factorization.

1064783218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474809 (or 1474790 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 1064783218 is about 32631.0161962511. The cubic root of 1064783218 is about 1021.1441786873.

The spelling of 1064783218 in words is "one billion, sixty-four million, seven hundred eighty-three thousand, two hundred eighteen".