8343193440 has 48 divisors (see below), whose sum is σ = 26281060848. Its totient is φ = 2224851456.

The previous prime is 8343193427. The next prime is 8343193451. The reversal of 8343193440 is 443913438.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8690347 + ... + 8691306.

It is an arithmetic number, because the mean of its divisors is an integer number (547522101).

Almost surely, 2^8343193440 is an apocalyptic number.

8343193440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8343193440 is an abundant number, since it is smaller than the sum of its proper divisors (17937867408).

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

8343193440 is a wasteful number, since it uses less digits than its factorization.

8343193440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17381671 (or 17381663 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 8343193440 is about 91341.0829802231. The cubic root of 8343193440 is about 2028.1999654991.

The spelling of 8343193440 in words is "eight billion, three hundred forty-three million, one hundred ninety-three thousand, four hundred forty".