1323456 has 56 divisors (see below), whose sum is σ = 3590544. Its totient is φ = 430080.

The previous prime is 1323437. The next prime is 1323457. The reversal of 1323456 is 6543231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11656 + ... + 11768.

2^1323456 is an apocalyptic number.

1323456 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 1323456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1795272).

1323456 is an abundant number, since it is smaller than the sum of its proper divisors (2267088).

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

1323456 is a wasteful number, since it uses less digits than its factorization.

1323456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 179 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 1323456 is about 1150.4155770851. The cubic root of 1323456 is about 109.7917824249.

Adding to 1323456 its reverse (6543231), we get a palindrome (7866687).

The spelling of 1323456 in words is "one million, three hundred twenty-three thousand, four hundred fifty-six".