2318609238 has 32 divisors (see below), whose sum is σ = 5095198080. Its totient is φ = 697551360.

The previous prime is 2318609219. The next prime is 2318609239. The reversal of 2318609238 is 8329068132.

It is a self number, because there is not a number n which added to its sum of digits gives 2318609238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2318609239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117195 + ... + 135542.

It is an arithmetic number, because the mean of its divisors is an integer number (159224940).

Almost surely, 2^2318609238 is an apocalyptic number.

2318609238 is an abundant number, since it is smaller than the sum of its proper divisors (2776588842).

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

2318609238 is a wasteful number, since it uses less digits than its factorization.

2318609238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252892.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 2318609238 is about 48151.9390886805. The cubic root of 2318609238 is about 1323.5566079638.

The spelling of 2318609238 in words is "two billion, three hundred eighteen million, six hundred nine thousand, two hundred thirty-eight".