2318918532 has 144 divisors (see below), whose sum is σ = 6549984000. Its totient is φ = 635905536.

The previous prime is 2318918531. The next prime is 2318918557. The reversal of 2318918532 is 2358198132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (2318918531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4075144 + ... + 4075712.

It is an arithmetic number, because the mean of its divisors is an integer number (45486000).

Almost surely, 2^2318918532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2318918532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3274992000).

2318918532 is an abundant number, since it is smaller than the sum of its proper divisors (4231065468).

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

2318918532 is a wasteful number, since it uses less digits than its factorization.

2318918532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 849 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 2318918532 is about 48155.1506279443. The cubic root of 2318918532 is about 1323.6154578855.

The spelling of 2318918532 in words is "two billion, three hundred eighteen million, nine hundred eighteen thousand, five hundred thirty-two".