1224306 has 24 divisors (see below), whose sum is σ = 2809404. Its totient is φ = 384000.

The previous prime is 1224299. The next prime is 1224329. The reversal of 1224306 is 6034221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1199025 + 25281 = 1095^2 + 159^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1695 + ... + 2306.

2^1224306 is an apocalyptic number.

1224306 is an abundant number, since it is smaller than the sum of its proper divisors (1585098).

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

1224306 is a wasteful number, since it uses less digits than its factorization.

1224306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026 (or 4023 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1224306 is about 1106.4836193998. The cubic root of 1224306 is about 106.9785382174.

Adding to 1224306 its reverse (6034221), we get a palindrome (7258527).

It can be divided in two parts, 1224 and 306, that multiplied together give a square (374544 = 612²).

The spelling of 1224306 in words is "one million, two hundred twenty-four thousand, three hundred six".