8381343924 has 36 divisors (see below), whose sum is σ = 21209616064. Its totient is φ = 2790690192.

The previous prime is 8381343917. The next prime is 8381343931. The reversal of 8381343924 is 4293431838.

It is an interprime number because it is at equal distance from previous prime (8381343917) and next prime (8381343931).

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 8381343924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95692 + ... + 160995.

Almost surely, 2^8381343924 is an apocalyptic number.

It is an amenable number.

8381343924 is an abundant number, since it is smaller than the sum of its proper divisors (12828272140).

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

8381343924 is a wasteful number, since it uses less digits than its factorization.

8381343924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257604 (or 257599 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 8381343924 is about 91549.6800868250. The cubic root of 8381343924 is about 2031.2866800616.

The spelling of 8381343924 in words is "eight billion, three hundred eighty-one million, three hundred forty-three thousand, nine hundred twenty-four".