286542542 has 24 divisors (see below), whose sum is σ = 507737160. Its totient is φ = 120226080.

The previous prime is 286542511. The next prime is 286542547. The reversal of 286542542 is 245245682.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 286542496 and 286542505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286542547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34817 + ... + 42252.

It is an arithmetic number, because the mean of its divisors is an integer number (21155715).

Almost surely, 2^286542542 is an apocalyptic number.

286542542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

286542542 is a deficient number, since it is larger than the sum of its proper divisors (221194618).

286542542 is a wasteful number, since it uses less digits than its factorization.

286542542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77108 (or 77095 counting only the distinct ones).

The product of its digits is 153600, while the sum is 38.

The square root of 286542542 is about 16927.5675157419. The cubic root of 286542542 is about 659.2695791481.

The spelling of 286542542 in words is "two hundred eighty-six million, five hundred forty-two thousand, five hundred forty-two".