8381382090 has 64 divisors (see below), whose sum is σ = 20275781760. Its totient is φ = 2217277440.

The previous prime is 8381382089. The next prime is 8381382151. The reversal of 8381382090 is 902831838.

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, 2131246 + ... + 2135174.

It is an arithmetic number, because the mean of its divisors is an integer number (316809090).

Almost surely, 2^8381382090 is an apocalyptic number.

8381382090 is an abundant number, since it is smaller than the sum of its proper divisors (11894399670).

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

8381382090 is a wasteful number, since it uses less digits than its factorization.

8381382090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 8381382090 is about 91549.8885307896. Note that the first 3 decimals coincide. The cubic root of 8381382090 is about 2031.2897633368.

The spelling of 8381382090 in words is "eight billion, three hundred eighty-one million, three hundred eighty-two thousand, ninety".