1224336 has 40 divisors (see below), whose sum is σ = 3303360. Its totient is φ = 390016.

The previous prime is 1224329. The next prime is 1224337. The reversal of 1224336 is 6334221.

It is a happy number.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1224337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550 + ... + 1658.

It is an arithmetic number, because the mean of its divisors is an integer number (82584).

2^1224336 is an apocalyptic number.

1224336 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 1224336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1651680).

1224336 is an abundant number, since it is smaller than the sum of its proper divisors (2079024).

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

1224336 is a wasteful number, since it uses less digits than its factorization.

1224336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143 (or 1137 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 1224336 is about 1106.4971757759. The cubic root of 1224336 is about 106.9794119995.

Adding to 1224336 its reverse (6334221), we get a palindrome (7558557).

The spelling of 1224336 in words is "one million, two hundred twenty-four thousand, three hundred thirty-six".