12039210 has 24 divisors (see below), whose sum is σ = 31302180. Its totient is φ = 3210432.

The previous prime is 12039193. The next prime is 12039221. The reversal of 12039210 is 1293021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11964681 + 74529 = 3459^2 + 273^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66795 + ... + 66974.

Almost surely, 2^12039210 is an apocalyptic number.

12039210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12039210 is an abundant number, since it is smaller than the sum of its proper divisors (19262970).

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

12039210 is a wasteful number, since it uses less digits than its factorization.

12039210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133782 (or 133779 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 12039210 is about 3469.7564756046. The cubic root of 12039210 is about 229.1919343305.

The spelling of 12039210 in words is "twelve million, thirty-nine thousand, two hundred ten".