286448642 has 16 divisors (see below), whose sum is σ = 438768792. Its totient is φ = 140221440.

The previous prime is 286448641. The next prime is 286448653. The reversal of 286448642 is 246844682.

It can be written as a sum of positive squares in 4 ways, for example, as 180338041 + 106110601 = 13429^2 + 10301^2 .

It is a junction number, because it is equal to n+sod(n) for n = 286448593 and 286448602.

It is not an unprimeable number, because it can be changed into a prime (286448641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12842 + ... + 27162.

Almost surely, 2^286448642 is an apocalyptic number.

286448642 is a deficient number, since it is larger than the sum of its proper divisors (152320150).

286448642 is a wasteful number, since it uses less digits than its factorization.

286448642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14533.

The product of its digits is 589824, while the sum is 44.

The square root of 286448642 is about 16924.7937062760. The cubic root of 286448642 is about 659.1975570597.

The spelling of 286448642 in words is "two hundred eighty-six million, four hundred forty-eight thousand, six hundred forty-two".