284689442 has 4 divisors (see below), whose sum is σ = 427034166. Its totient is φ = 142344720.

The previous prime is 284689441. The next prime is 284689451. The reversal of 284689442 is 244986482.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 255648121 + 29041321 = 15989^2 + 5389^2 .

It is not an unprimeable number, because it can be changed into a prime (284689441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71172359 + ... + 71172362.

Almost surely, 2^284689442 is an apocalyptic number.

284689442 is a deficient number, since it is larger than the sum of its proper divisors (142344724).

284689442 is a wasteful number, since it uses less digits than its factorization.

284689442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142344723.

The product of its digits is 884736, while the sum is 47.

The square root of 284689442 is about 16872.7425749343. The cubic root of 284689442 is about 657.8453164480.

The spelling of 284689442 in words is "two hundred eighty-four million, six hundred eighty-nine thousand, four hundred forty-two".