2388973818 has 64 divisors (see below), whose sum is σ = 5999938560. Its totient is φ = 616032000.

The previous prime is 2388973813. The next prime is 2388973843. The reversal of 2388973818 is 8183798832.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2388973813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45618 + ... + 82818.

It is an arithmetic number, because the mean of its divisors is an integer number (93749040).

Almost surely, 2^2388973818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2388973818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2999969280).

2388973818 is an abundant number, since it is smaller than the sum of its proper divisors (3610964742).

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

2388973818 is a wasteful number, since it uses less digits than its factorization.

2388973818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37363.

The product of its digits is 4644864, while the sum is 57.

The square root of 2388973818 is about 48877.1298052576. The cubic root of 2388973818 is about 1336.8123939711.

The spelling of 2388973818 in words is "two billion, three hundred eighty-eight million, nine hundred seventy-three thousand, eight hundred eighteen".