8394649380 has 192 divisors, whose sum is σ = 28179217920. Its totient is φ = 2062444032.

The previous prime is 8394649337. The next prime is 8394649447. The reversal of 8394649380 is 839464938.

It is a happy number.

8394649380 is a `hidden beast` number, since 8 + 39 + 46 + 493 + 80 = 666.

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

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 5776734 + ... + 5778186.

It is an arithmetic number, because the mean of its divisors is an integer number (146766760).

Almost surely, 2^8394649380 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 8394649380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14089608960).

8394649380 is an abundant number, since it is smaller than the sum of its proper divisors (19784568540).

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

8394649380 is a wasteful number, since it uses less digits than its factorization.

8394649380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307 (or 2299 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The square root of 8394649380 is about 91622.3192240843. The cubic root of 8394649380 is about 2032.3610068212.

The spelling of 8394649380 in words is "eight billion, three hundred ninety-four million, six hundred forty-nine thousand, three hundred eighty".