378532218 has 32 divisors (see below), whose sum is σ = 768087936. Its totient is φ = 124351488.

The previous prime is 378532211. The next prime is 378532223. The reversal of 378532218 is 812235873.

It is not an unprimeable number, because it can be changed into a prime (378532211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151830 + ... + 154302.

It is an arithmetic number, because the mean of its divisors is an integer number (24002748).

Almost surely, 2^378532218 is an apocalyptic number.

378532218 is an abundant number, since it is smaller than the sum of its proper divisors (389555718).

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

378532218 is a wasteful number, since it uses less digits than its factorization.

378532218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838.

The product of its digits is 80640, while the sum is 39.

The square root of 378532218 is about 19455.9044508345. The cubic root of 378532218 is about 723.3818643185.

The spelling of 378532218 in words is "three hundred seventy-eight million, five hundred thirty-two thousand, two hundred eighteen".