1442320313 has 8 divisors (see below), whose sum is σ = 1676304960. Its totient is φ = 1215320400.

The previous prime is 1442320309. The next prime is 1442320337. The reversal of 1442320313 is 3130232441.

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

It is not a de Polignac number, because 1442320313 - 2² = 1442320309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442320213) 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, 1745738 + ... + 1746563.

It is an arithmetic number, because the mean of its divisors is an integer number (209538120).

Almost surely, 2^1442320313 is an apocalyptic number.

It is an amenable number.

1442320313 is a deficient number, since it is larger than the sum of its proper divisors (233984647).

1442320313 is an equidigital number, since it uses as much as digits as its factorization.

1442320313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3492367.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1442320313 is about 37977.8924244092. The cubic root of 1442320313 is about 1129.8494364357.

Adding to 1442320313 its reverse (3130232441), we get a palindrome (4572552754).

The spelling of 1442320313 in words is "one billion, four hundred forty-two million, three hundred twenty thousand, three hundred thirteen".