8392390668 has 192 divisors, whose sum is σ = 23595264000. Its totient is φ = 2571041088.

The previous prime is 8392390667. The next prime is 8392390693. The reversal of 8392390668 is 8660932938.

It is a super-2 number, since 2×8392390668² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (8392390661) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20029363 + ... + 20029781.

It is an arithmetic number, because the mean of its divisors is an integer number (122892000).

Almost surely, 2^8392390668 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 8392390668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11797632000).

8392390668 is an abundant number, since it is smaller than the sum of its proper divisors (15202873332).

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

8392390668 is a wasteful number, since it uses less digits than its factorization.

8392390668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The square root of 8392390668 is about 91609.9921842590. The cubic root of 8392390668 is about 2032.1787109418.

The spelling of 8392390668 in words is "eight billion, three hundred ninety-two million, three hundred ninety thousand, six hundred sixty-eight".