1224540343 has 8 divisors (see below), whose sum is σ = 1319007536. Its totient is φ = 1130112000.

The previous prime is 1224540313. The next prime is 1224540347. The reversal of 1224540343 is 3430454221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1224540343 - 2⁹ = 1224539831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224540347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119908 + ... + 129718.

It is an arithmetic number, because the mean of its divisors is an integer number (164875942).

Almost surely, 2^1224540343 is an apocalyptic number.

1224540343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1224540343 is a deficient number, since it is larger than the sum of its proper divisors (94467193).

1224540343 is an equidigital number, since it uses as much as digits as its factorization.

1224540343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19425.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 1224540343 is about 34993.4328553230. The cubic root of 1224540343 is about 1069.8536332823.

Adding to 1224540343 its reverse (3430454221), we get a palindrome (4654994564).

The spelling of 1224540343 in words is "one billion, two hundred twenty-four million, five hundred forty thousand, three hundred forty-three".