7442308818 has 72 divisors (see below), whose sum is σ = 19042530624. Its totient is φ = 2057747760.

The previous prime is 7442308799. The next prime is 7442308829. The reversal of 7442308818 is 8188032447.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 90355 + ... + 151817.

It is an arithmetic number, because the mean of its divisors is an integer number (264479592).

Almost surely, 2^7442308818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7442308818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9521265312).

7442308818 is an abundant number, since it is smaller than the sum of its proper divisors (11600221806).

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

7442308818 is a wasteful number, since it uses less digits than its factorization.

7442308818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61540 (or 61506 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 7442308818 is about 86268.8171821082. The cubic root of 7442308818 is about 1952.4019332750.

The spelling of 7442308818 in words is "seven billion, four hundred forty-two million, three hundred eight thousand, eight hundred eighteen".