8381445090 has 32 divisors (see below), whose sum is σ = 20606092416. Its totient is φ = 2180538240.

The previous prime is 8381445067. The next prime is 8381445101. The reversal of 8381445090 is 905441838.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3405862 + ... + 3408321.

It is an arithmetic number, because the mean of its divisors is an integer number (643940388).

Almost surely, 2^8381445090 is an apocalyptic number.

8381445090 is an abundant number, since it is smaller than the sum of its proper divisors (12224647326).

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

8381445090 is a wasteful number, since it uses less digits than its factorization.

8381445090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814234.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 8381445090 is about 91550.2326048383. The cubic root of 8381445090 is about 2031.2948528289.

The spelling of 8381445090 in words is "eight billion, three hundred eighty-one million, four hundred forty-five thousand, ninety".