1224343 has 4 divisors (see below), whose sum is σ = 1227208. Its totient is φ = 1221480.

The previous prime is 1224337. The next prime is 1224347. The reversal of 1224343 is 3434221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1224343 - 2¹³ = 1216151 is a prime.

It is the 1107-th Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1224343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224347) by changing a digit.

It is a nontrivial repunit in base 1106.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648 + ... + 1693.

It is an arithmetic number, because the mean of its divisors is an integer number (306802).

2^1224343 is an apocalyptic number.

1224343 is a deficient number, since it is larger than the sum of its proper divisors (2865).

1224343 is an equidigital number, since it uses as much as digits as its factorization.

1224343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864.

The product of its digits is 576, while the sum is 19.

The square root of 1224343 is about 1106.5003389064. The cubic root of 1224343 is about 106.9796158800.

Adding to 1224343 its reverse (3434221), we get a palindrome (4658564).

It can be divided in two parts, 122 and 4343, that added together give a triangular number (4465 = T₉₄).

The spelling of 1224343 in words is "one million, two hundred twenty-four thousand, three hundred forty-three".