8280715428 has 24 divisors (see below), whose sum is σ = 21468521760. Its totient is φ = 2760238440.

The previous prime is 8280715423. The next prime is 8280715441. The reversal of 8280715428 is 8245170828.

It is a happy number.

8280715428 is a `hidden beast` number, since 82 + 80 + 71 + 5 + 428 = 666.

It is not an unprimeable number, because it can be changed into a prime (8280715423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38336538 + ... + 38336753.

It is an arithmetic number, because the mean of its divisors is an integer number (894521740).

Almost surely, 2^8280715428 is an apocalyptic number.

It is an amenable number.

8280715428 is an abundant number, since it is smaller than the sum of its proper divisors (13187806332).

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

8280715428 is a wasteful number, since it uses less digits than its factorization.

8280715428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76673304 (or 76673296 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The square root of 8280715428 is about 90998.4364041493. The cubic root of 8280715428 is about 2023.1245494617.

The spelling of 8280715428 in words is "eight billion, two hundred eighty million, seven hundred fifteen thousand, four hundred twenty-eight".