1224406 has 8 divisors (see below), whose sum is σ = 1871424. Its totient is φ = 600600.

The previous prime is 1224403. The next prime is 1224413. The reversal of 1224406 is 6044221.

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

It is a congruent number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5670 + ... + 5881.

It is an arithmetic number, because the mean of its divisors is an integer number (233928).

2^1224406 is an apocalyptic number.

1224406 is a deficient number, since it is larger than the sum of its proper divisors (647018).

1224406 is a wasteful number, since it uses less digits than its factorization.

1224406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11606.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1224406 is about 1106.5288066743. The cubic root of 1224406 is about 106.9814507689.

Adding to 1224406 its reverse (6044221), we get a palindrome (7268627).

The spelling of 1224406 in words is "one million, two hundred twenty-four thousand, four hundred six".