378890286 has 64 divisors (see below), whose sum is σ = 838675200. Its totient is φ = 113654016.

The previous prime is 378890261. The next prime is 378890299. The reversal of 378890286 is 682098873.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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, 180330 + ... + 182418.

It is an arithmetic number, because the mean of its divisors is an integer number (13104300).

Almost surely, 2^378890286 is an apocalyptic number.

378890286 is an abundant number, since it is smaller than the sum of its proper divisors (459784914).

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

378890286 is a wasteful number, since it uses less digits than its factorization.

378890286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 378890286 is about 19465.1043151584. The cubic root of 378890286 is about 723.6098838949.

The spelling of 378890286 in words is "three hundred seventy-eight million, eight hundred ninety thousand, two hundred eighty-six".