8399020032 has 448 divisors, whose sum is σ = 28184002560. Its totient is φ = 2452488192.

The previous prime is 8399020013. The next prime is 8399020039. The reversal of 8399020032 is 2300209938.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8399020039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66133953 + ... + 66134079.

It is an arithmetic number, because the mean of its divisors is an integer number (62910720).

Almost surely, 2^8399020032 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 8399020032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14092001280).

8399020032 is an abundant number, since it is smaller than the sum of its proper divisors (19784982528).

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

8399020032 is a wasteful number, since it uses less digits than its factorization.

8399020032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 8399020032 is about 91646.1675794466. The cubic root of 8399020032 is about 2032.7136600868.

The spelling of 8399020032 in words is "eight billion, three hundred ninety-nine million, twenty thousand, thirty-two".