8139443200 has 264 divisors, whose sum is σ = 23520717792. Its totient is φ = 2734817280.

The previous prime is 8139443197. The next prime is 8139443201. The reversal of 8139443200 is 23449318.

It is not an unprimeable number, because it can be changed into a prime (8139443201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9497172 + ... + 9498028.

It is an arithmetic number, because the mean of its divisors is an integer number (89093628).

Almost surely, 2^8139443200 is an apocalyptic number.

8139443200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8139443200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11760358896).

8139443200 is an abundant number, since it is smaller than the sum of its proper divisors (15381274592).

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

8139443200 is a wasteful number, since it uses less digits than its factorization.

8139443200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 8139443200 is about 90218.8627727040. The cubic root of 8139443200 is about 2011.5533976547.

The spelling of 8139443200 in words is "eight billion, one hundred thirty-nine million, four hundred forty-three thousand, two hundred".