1224423 has 16 divisors (see below), whose sum is σ = 1836000. Its totient is φ = 806400.

The previous prime is 1224413. The next prime is 1224437. The reversal of 1224423 is 3244221.

It is not a de Polignac number, because 1224423 - 2¹² = 1220327 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1224396 and 1224405.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2503 + ... + 2951.

It is an arithmetic number, because the mean of its divisors is an integer number (114750).

2^1224423 is an apocalyptic number.

1224423 is a deficient number, since it is larger than the sum of its proper divisors (611577).

1224423 is a wasteful number, since it uses less digits than its factorization.

1224423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559 (or 553 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 1224423 is about 1106.5364883274. The cubic root of 1224423 is about 106.9819458868.

Adding to 1224423 its reverse (3244221), we get a palindrome (4468644).

The spelling of 1224423 in words is "one million, two hundred twenty-four thousand, four hundred twenty-three".