12030636 has 12 divisors (see below), whose sum is σ = 28071512. Its totient is φ = 4010208.

The previous prime is 12030607. The next prime is 12030653. The reversal of 12030636 is 63603021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 501265 + ... + 501288.

Almost surely, 2^12030636 is an apocalyptic number.

It is an amenable number.

12030636 is an abundant number, since it is smaller than the sum of its proper divisors (16040876).

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

12030636 is a wasteful number, since it uses less digits than its factorization.

12030636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002560 (or 1002558 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 12030636 is about 3468.5207221523. The cubic root of 12030636 is about 229.1375133089.

Adding to 12030636 its reverse (63603021), we get a palindrome (75633657).

The spelling of 12030636 in words is "twelve million, thirty thousand, six hundred thirty-six".