286983442 has 4 divisors (see below), whose sum is σ = 430475166. Its totient is φ = 143491720.

The previous prime is 286983413. The next prime is 286983479. The reversal of 286983442 is 244389682.

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., 215766721 + 71216721 = 14689^2 + 8439^2 .

It is a junction number, because it is equal to n+sod(n) for n = 286983392 and 286983401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71745859 + ... + 71745862.

Almost surely, 2^286983442 is an apocalyptic number.

286983442 is a deficient number, since it is larger than the sum of its proper divisors (143491724).

286983442 is a wasteful number, since it uses less digits than its factorization.

286983442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143491723.

The product of its digits is 663552, while the sum is 46.

The square root of 286983442 is about 16940.5856451305. The cubic root of 286983442 is about 659.6075429261.

The spelling of 286983442 in words is "two hundred eighty-six million, nine hundred eighty-three thousand, four hundred forty-two".