12273536 has 64 divisors (see below), whose sum is σ = 27907200. Its totient is φ = 5322240.

The previous prime is 12273523. The next prime is 12273539. The reversal of 12273536 is 63537221.

It is a tau number, because it is divible by the number of its divisors (64).

It is a pancake number, because a pancake can be divided into 12273536 parts by 4954 straight cuts.

It is a junction number, because it is equal to n+sod(n) for n = 12273499 and 12273508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12273539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32195 + ... + 32573.

It is an arithmetic number, because the mean of its divisors is an integer number (436050).

Almost surely, 2^12273536 is an apocalyptic number.

12273536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12273536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13953600).

12273536 is an abundant number, since it is smaller than the sum of its proper divisors (15633664).

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

12273536 is a wasteful number, since it uses less digits than its factorization.

12273536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 415 counting only the distinct ones).

The product of its digits is 7560, while the sum is 29.

The square root of 12273536 is about 3503.3606722688. The cubic root of 12273536 is about 230.6693544781.

The spelling of 12273536 in words is "twelve million, two hundred seventy-three thousand, five hundred thirty-six".