1424222643 has 4 divisors (see below), whose sum is σ = 1898963528. Its totient is φ = 949481760.

The previous prime is 1424222641. The next prime is 1424222659. The reversal of 1424222643 is 3462224241.

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

It is not a de Polignac number, because 1424222643 - 2¹ = 1424222641 is a prime.

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 1424222643.

It is not an unprimeable number, because it can be changed into a prime (1424222641) 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, 237370438 + ... + 237370443.

It is an arithmetic number, because the mean of its divisors is an integer number (474740882).

Almost surely, 2^1424222643 is an apocalyptic number.

1424222643 is a deficient number, since it is larger than the sum of its proper divisors (474740885).

1424222643 is an equidigital number, since it uses as much as digits as its factorization.

1424222643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474740884.

The product of its digits is 18432, while the sum is 30.

The square root of 1424222643 is about 37738.8744267764. The cubic root of 1424222643 is about 1125.1038963799.

Adding to 1424222643 its reverse (3462224241), we get a palindrome (4886446884).

The spelling of 1424222643 in words is "one billion, four hundred twenty-four million, two hundred twenty-two thousand, six hundred forty-three".