8120378 has 48 divisors (see below), whose sum is σ = 15168384. Its totient is φ = 3245760.

The previous prime is 8120369. The next prime is 8120383. The reversal of 8120378 is 8730218.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8120378.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172751 + ... + 172797.

It is an arithmetic number, because the mean of its divisors is an integer number (316008).

Almost surely, 2^8120378 is an apocalyptic number.

8120378 is a deficient number, since it is larger than the sum of its proper divisors (7048006).

8120378 is a wasteful number, since it uses less digits than its factorization.

8120378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 8120378 is about 2849.6276949805. The cubic root of 8120378 is about 200.9981600947.

The spelling of 8120378 in words is "eight million, one hundred twenty thousand, three hundred seventy-eight".