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12292 = 227439

12292 has 12 divisors (see below), whose sum is σ = 24640. Its totient is φ = 5256.

The previous prime is 12289. The next prime is 12301. The reversal of 12292 is 29221.

It is a happy number.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192 + ... + 247.

212292 is an apocalyptic number.

It is an amenable number.

12292 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12320).

12292 is a wasteful number, since it uses less digits than its factorization.

12292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 448 counting only the distinct ones).

The product of its digits is 72, while the sum is 16.

The square root of 12292 is about 110.8692924123. The cubic root of 12292 is about 23.0784967588.

The spelling of 12292 in words is "twelve thousand, two hundred ninety-two".

Divisors: 1 2 4 7 14 28 439 878 1756 3073 6146 12292