286020242 has 4 divisors (see below), whose sum is σ = 429030366. Its totient is φ = 143010120.

The previous prime is 286020233. The next prime is 286020247. The reversal of 286020242 is 242020682.

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., 280596001 + 5424241 = 16751^2 + 2329^2 .

It is not an unprimeable number, because it can be changed into a prime (286020247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71505059 + ... + 71505062.

Almost surely, 2^286020242 is an apocalyptic number.

286020242 is a deficient number, since it is larger than the sum of its proper divisors (143010124).

286020242 is a wasteful number, since it uses less digits than its factorization.

286020242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143010123.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 286020242 is about 16912.1329819748. The cubic root of 286020242 is about 658.8687708006.

The spelling of 286020242 in words is "two hundred eighty-six million, twenty thousand, two hundred forty-two".