286044442 has 4 divisors (see below), whose sum is σ = 429066666. Its totient is φ = 143022220.

The previous prime is 286044403. The next prime is 286044443. The reversal of 286044442 is 244440682.

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., 230705721 + 55338721 = 15189^2 + 7439^2 .

It is a junction number, because it is equal to n+sod(n) for n = 286044398 and 286044407.

It is not an unprimeable number, because it can be changed into a prime (286044443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71511109 + ... + 71511112.

Almost surely, 2^286044442 is an apocalyptic number.

286044442 is a deficient number, since it is larger than the sum of its proper divisors (143022224).

286044442 is a wasteful number, since it uses less digits than its factorization.

286044442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143022223.

The product of its (nonzero) digits is 49152, while the sum is 34.

The square root of 286044442 is about 16912.8484295224. The cubic root of 286044442 is about 658.8873524395.

The spelling of 286044442 in words is "two hundred eighty-six million, forty-four thousand, four hundred forty-two".