1224402 has 8 divisors (see below), whose sum is σ = 2448816. Its totient is φ = 408132.

The previous prime is 1224389. The next prime is 1224403. The reversal of 1224402 is 2044221.

It is a sphenic number, since it is the product of 3 distinct primes.

1224402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1224403) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 102028 + ... + 102039.

It is an arithmetic number, because the mean of its divisors is an integer number (306102).

2^1224402 is an apocalyptic number.

1224402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1224402 is a wasteful number, since it uses less digits than its factorization.

1224402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204072.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1224402 is about 1106.5269992187. The cubic root of 1224402 is about 106.9813342699.

Adding to 1224402 its reverse (2044221), we get a palindrome (3268623).

The spelling of 1224402 in words is "one million, two hundred twenty-four thousand, four hundred two".