1224340642 has 8 divisors (see below), whose sum is σ = 2098869696. Its totient is φ = 524717412.

The previous prime is 1224340633. The next prime is 1224340661. The reversal of 1224340642 is 2460434221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1224340642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43726438 + ... + 43726465.

It is an arithmetic number, because the mean of its divisors is an integer number (262358712).

Almost surely, 2^1224340642 is an apocalyptic number.

1224340642 is a deficient number, since it is larger than the sum of its proper divisors (874529054).

1224340642 is an equidigital number, since it uses as much as digits as its factorization.

1224340642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87452912.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 1224340642 is about 34990.5793321574. The cubic root of 1224340642 is about 1069.7954720147.

Adding to 1224340642 its reverse (2460434221), we get a palindrome (3684774863).

The spelling of 1224340642 in words is "one billion, two hundred twenty-four million, three hundred forty thousand, six hundred forty-two".