12023436 has 12 divisors (see below), whose sum is σ = 28054712. Its totient is φ = 4007808.

The previous prime is 12023419. The next prime is 12023461. The reversal of 12023436 is 63432021.

It is a happy number.

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

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, 500965 + ... + 500988.

Almost surely, 2^12023436 is an apocalyptic number.

It is an amenable number.

12023436 is an abundant number, since it is smaller than the sum of its proper divisors (16031276).

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

12023436 is a wasteful number, since it uses less digits than its factorization.

12023436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001960 (or 1001958 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 12023436 is about 3467.4826603748. The cubic root of 12023436 is about 229.0917933840.

Adding to 12023436 its reverse (63432021), we get a palindrome (75455457).

The spelling of 12023436 in words is "twelve million, twenty-three thousand, four hundred thirty-six".