1224442873 has 4 divisors (see below), whose sum is σ = 1225833588. Its totient is φ = 1223052160.

The previous prime is 1224442853. The next prime is 1224442903. The reversal of 1224442873 is 3782444221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 213393664 + 1011049209 = 14608^2 + 31797^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224442873 - 2⁵ = 1224442841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224442823) 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, 694036 + ... + 695797.

It is an arithmetic number, because the mean of its divisors is an integer number (306458397).

Almost surely, 2^1224442873 is an apocalyptic number.

It is an amenable number.

1224442873 is a deficient number, since it is larger than the sum of its proper divisors (1390715).

1224442873 is an equidigital number, since it uses as much as digits as its factorization.

1224442873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390714.

The product of its digits is 86016, while the sum is 37.

The square root of 1224442873 is about 34992.0401377228. The cubic root of 1224442873 is about 1069.8252467395.

The spelling of 1224442873 in words is "one billion, two hundred twenty-four million, four hundred forty-two thousand, eight hundred seventy-three".