30286 has 8 divisors (see below), whose sum is σ = 47880. Its totient is φ = 14328.

The previous prime is 30271. The next prime is 30293. The reversal of 30286 is 68203.

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

It is a super-3 number, since 3×30286³ = 83338755100968, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 361 + ... + 436.

It is an arithmetic number, because the mean of its divisors is an integer number (5985).

2³⁰²⁸⁶ is an apocalyptic number.

30286 is a deficient number, since it is larger than the sum of its proper divisors (17594).

30286 is a wasteful number, since it uses less digits than its factorization.

30286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 30286 is about 174.0287332598. The cubic root of 30286 is about 31.1707538782.

Adding to 30286 its reverse (68203), we get a palindrome (98489).

The spelling of 30286 in words is "thirty thousand, two hundred eighty-six".