1442430331 has 4 divisors (see below), whose sum is σ = 1527279192. Its totient is φ = 1357581472.

The previous prime is 1442430323. The next prime is 1442430343. The reversal of 1442430331 is 1330342441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1330342441 = 307 ⋅4333363.

It is a cyclic number.

It is not a de Polignac number, because 1442430331 - 2³ = 1442430323 is a prime.

It is a super-2 number, since 2×1442430331² = 4161210519577539122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442430296 and 1442430305.

It is not an unprimeable number, because it can be changed into a prime (1442430361) 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, 42424405 + ... + 42424438.

It is an arithmetic number, because the mean of its divisors is an integer number (381819798).

Almost surely, 2^1442430331 is an apocalyptic number.

1442430331 is a deficient number, since it is larger than the sum of its proper divisors (84848861).

1442430331 is an equidigital number, since it uses as much as digits as its factorization.

1442430331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84848860.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1442430331 is about 37979.3408447277. The cubic root of 1442430331 is about 1129.8781634375.

Adding to 1442430331 its reverse (1330342441), we get a palindrome (2772772772).

The spelling of 1442430331 in words is "one billion, four hundred forty-two million, four hundred thirty thousand, three hundred thirty-one".