286742 has 8 divisors (see below), whose sum is σ = 432432. Its totient is φ = 142600.

The previous prime is 286733. The next prime is 286751. The reversal of 286742 is 247682.

It is an interprime number because it is at equal distance from previous prime (286733) and next prime (286751).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392 + ... + 852.

It is an arithmetic number, because the mean of its divisors is an integer number (54054).

2²⁸⁶⁷⁴² is an apocalyptic number.

286742 is a deficient number, since it is larger than the sum of its proper divisors (145690).

286742 is a wasteful number, since it uses less digits than its factorization.

286742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774.

The product of its digits is 5376, while the sum is 29.

The square root of 286742 is about 535.4829595795. The cubic root of 286742 is about 65.9422512917.

Subtracting from 286742 its reverse (247682), we obtain a triangular number (39060 = T₂₇₉).

It can be divided in two parts, 286 and 742, that multiplied together give a palindrome (212212).

The spelling of 286742 in words is "two hundred eighty-six thousand, seven hundred forty-two".