12423532 has 36 divisors (see below), whose sum is σ = 25220664. Its totient is φ = 5309440.

The previous prime is 12423491. The next prime is 12423539. The reversal of 12423532 is 23532421.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (12423539) by changing a digit.

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, 12228 + ... + 13204.

It is an arithmetic number, because the mean of its divisors is an integer number (700574).

Almost surely, 2^12423532 is an apocalyptic number.

It is an amenable number.

12423532 is an abundant number, since it is smaller than the sum of its proper divisors (12797132).

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

12423532 is a wasteful number, since it uses less digits than its factorization.

12423532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026 (or 1007 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 12423532 is about 3524.7031080646. The cubic root of 12423532 is about 231.6052293537.

Adding to 12423532 its reverse (23532421), we get a palindrome (35955953).

Subtracting 12423532 from its reverse (23532421), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1242 and 3532, that added together give a palindrome (4774).

The spelling of 12423532 in words is "twelve million, four hundred twenty-three thousand, five hundred thirty-two".