1218345352 has 32 divisors (see below), whose sum is σ = 2611900800. Its totient is φ = 521915904.

The previous prime is 1218345343. The next prime is 1218345371. The reversal of 1218345352 is 2535438121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196248 + ... + 202360.

It is an arithmetic number, because the mean of its divisors is an integer number (81621900).

Almost surely, 2^1218345352 is an apocalyptic number.

It is an amenable number.

1218345352 is an abundant number, since it is smaller than the sum of its proper divisors (1393555448).

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

1218345352 is a wasteful number, since it uses less digits than its factorization.

1218345352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9685 (or 9681 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 1218345352 is about 34904.8041392585. The cubic root of 1218345352 is about 1068.0464403957.

The spelling of 1218345352 in words is "one billion, two hundred eighteen million, three hundred forty-five thousand, three hundred fifty-two".