284222378 has 16 divisors (see below), whose sum is σ = 470697696. Its totient is φ = 127634640.

The previous prime is 284222377. The next prime is 284222399. The reversal of 284222378 is 873222482.

It is not an unprimeable number, because it can be changed into a prime (284222377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76001 + ... + 79652.

It is an arithmetic number, because the mean of its divisors is an integer number (29418606).

Almost surely, 2^284222378 is an apocalyptic number.

284222378 is a deficient number, since it is larger than the sum of its proper divisors (186475318).

284222378 is a wasteful number, since it uses less digits than its factorization.

284222378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155749.

The product of its digits is 86016, while the sum is 38.

The square root of 284222378 is about 16858.8961085831. The cubic root of 284222378 is about 657.4853639270.

The spelling of 284222378 in words is "two hundred eighty-four million, two hundred twenty-two thousand, three hundred seventy-eight".