286144042 has 4 divisors (see below), whose sum is σ = 429216066. Its totient is φ = 143072020.

The previous prime is 286144039. The next prime is 286144147. The reversal of 286144042 is 240441682.

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., 206238321 + 79905721 = 14361^2 + 8939^2 .

It is a junction number, because it is equal to n+sod(n) for n = 286143995 and 286144013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71536009 + ... + 71536012.

Almost surely, 2^286144042 is an apocalyptic number.

286144042 is a deficient number, since it is larger than the sum of its proper divisors (143072024).

286144042 is a wasteful number, since it uses less digits than its factorization.

286144042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143072023.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 286144042 is about 16915.7926802145. The cubic root of 286144042 is about 658.9638179058.

The spelling of 286144042 in words is "two hundred eighty-six million, one hundred forty-four thousand, forty-two".