12023456 has 24 divisors (see below), whose sum is σ = 23748480. Its totient is φ = 5992128.

The previous prime is 12023419. The next prime is 12023461. The reversal of 12023456 is 65432021.

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, 19115 + ... + 19733.

It is an arithmetic number, because the mean of its divisors is an integer number (989520).

Almost surely, 2^12023456 is an apocalyptic number.

12023456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12023456 is a deficient number, since it is larger than the sum of its proper divisors (11725024).

12023456 is an equidigital number, since it uses as much as digits as its factorization.

12023456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 12023456 is about 3467.4855443102. The cubic root of 12023456 is about 229.0919204090.

Adding to 12023456 its reverse (65432021), we get a palindrome (77455477).

The spelling of 12023456 in words is "twelve million, twenty-three thousand, four hundred fifty-six".