12267424 has 48 divisors (see below), whose sum is σ = 26745768. Its totient is φ = 5501952.

The previous prime is 12267401. The next prime is 12267439. The reversal of 12267424 is 42476221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10679824 + 1587600 = 3268^2 + 1260^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12267392 and 12267401.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 14994 + ... + 15790.

Almost surely, 2^12267424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12267424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13372884).

12267424 is an abundant number, since it is smaller than the sum of its proper divisors (14478344).

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

12267424 is a wasteful number, since it uses less digits than its factorization.

12267424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 849 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 12267424 is about 3502.4882583672. The cubic root of 12267424 is about 230.6310583916.

The spelling of 12267424 in words is "twelve million, two hundred sixty-seven thousand, four hundred twenty-four".