8280638370 has 64 divisors (see below), whose sum is σ = 22443742080. Its totient is φ = 2171966400.

The previous prime is 8280638357. The next prime is 8280638407. The reversal of 8280638370 is 738360828.

8280638370 is a `hidden beast` number, since 8 + 2 + 8 + 0 + 638 + 3 + 7 + 0 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234916 + ... + 267855.

It is an arithmetic number, because the mean of its divisors is an integer number (350683470).

Almost surely, 2^8280638370 is an apocalyptic number.

8280638370 is an abundant number, since it is smaller than the sum of its proper divisors (14163103710).

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

8280638370 is a wasteful number, since it uses less digits than its factorization.

8280638370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502848 (or 502842 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 8280638370 is about 90998.0130002848. The cubic root of 8280638370 is about 2023.1182739003.

The spelling of 8280638370 in words is "eight billion, two hundred eighty million, six hundred thirty-eight thousand, three hundred seventy".