8381062840 has 32 divisors (see below), whose sum is σ = 19115718480. Its totient is φ = 3306500352.

The previous prime is 8381062819. The next prime is 8381062919. The reversal of 8381062840 is 482601838.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 8381062793 and 8381062802.

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, 1432194 + ... + 1438033.

Almost surely, 2^8381062840 is an apocalyptic number.

It is an amenable number.

8381062840 is an abundant number, since it is smaller than the sum of its proper divisors (10734655640).

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

8381062840 is a wasteful number, since it uses less digits than its factorization.

8381062840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870311 (or 2870307 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 8381062840 is about 91548.1449293212. The cubic root of 8381062840 is about 2031.2639721453.

The spelling of 8381062840 in words is "eight billion, three hundred eighty-one million, sixty-two thousand, eight hundred forty".