1442220323 has 4 divisors (see below), whose sum is σ = 1443977808. Its totient is φ = 1440462840.

The previous prime is 1442220271. The next prime is 1442220331. The reversal of 1442220323 is 3230222441.

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 1442220323 - 2⁸ = 1442220067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442220343) 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, 877511 + ... + 879152.

It is an arithmetic number, because the mean of its divisors is an integer number (360994452).

Almost surely, 2^1442220323 is an apocalyptic number.

1442220323 is a deficient number, since it is larger than the sum of its proper divisors (1757485).

1442220323 is an equidigital number, since it uses as much as digits as its factorization.

1442220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757484.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1442220323 is about 37976.5759778314. The cubic root of 1442220323 is about 1129.8233265961.

Adding to 1442220323 its reverse (3230222441), we get a palindrome (4672442764).

The spelling of 1442220323 in words is "one billion, four hundred forty-two million, two hundred twenty thousand, three hundred twenty-three".