8190450394 has 32 divisors (see below), whose sum is σ = 14347653120. Its totient is φ = 3433558128.

The previous prime is 8190450379. The next prime is 8190450407. The reversal of 8190450394 is 4930540918.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8190450394.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2200467 + ... + 2204185.

It is an arithmetic number, because the mean of its divisors is an integer number (448364160).

Almost surely, 2^8190450394 is an apocalyptic number.

8190450394 is a deficient number, since it is larger than the sum of its proper divisors (6157202726).

8190450394 is a wasteful number, since it uses less digits than its factorization.

8190450394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7122.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 8190450394 is about 90501.1071423991. The cubic root of 8190450394 is about 2015.7465636641.

The spelling of 8190450394 in words is "eight billion, one hundred ninety million, four hundred fifty thousand, three hundred ninety-four".