12277472 has 24 divisors (see below), whose sum is σ = 24249456. Its totient is φ = 6118912.

The previous prime is 12277427. The next prime is 12277483. The reversal of 12277472 is 27477221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

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 3 ways as a sum of consecutive naturals, for example, 18653 + ... + 19299.

It is an arithmetic number, because the mean of its divisors is an integer number (1010394).

Almost surely, 2^12277472 is an apocalyptic number.

It is an amenable number.

12277472 is a deficient number, since it is larger than the sum of its proper divisors (11971984).

12277472 is an equidigital number, since it uses as much as digits as its factorization.

12277472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250 (or 1242 counting only the distinct ones).

The product of its digits is 10976, while the sum is 32.

The square root of 12277472 is about 3503.9223735694. The cubic root of 12277472 is about 230.6940096262.

The spelling of 12277472 in words is "twelve million, two hundred seventy-seven thousand, four hundred seventy-two".