1322440142 has 8 divisors (see below), whose sum is σ = 2005948800. Its totient is φ = 653790544.

The previous prime is 1322440139. The next prime is 1322440151. The reversal of 1322440142 is 2410442231.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3714542 + ... + 3714897.

It is an arithmetic number, because the mean of its divisors is an integer number (250743600).

Almost surely, 2^1322440142 is an apocalyptic number.

1322440142 is a deficient number, since it is larger than the sum of its proper divisors (683508658).

1322440142 is an equidigital number, since it uses as much as digits as its factorization.

1322440142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7429530.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1322440142 is about 36365.3700929882. The cubic root of 1322440142 is about 1097.6368391877.

Adding to 1322440142 its reverse (2410442231), we get a palindrome (3732882373).

The spelling of 1322440142 in words is "one billion, three hundred twenty-two million, four hundred forty thousand, one hundred forty-two".