1320216442 has 8 divisors (see below), whose sum is σ = 1980560736. Its totient is φ = 660029532.

The previous prime is 1320216431. The next prime is 1320216451. The reversal of 1320216442 is 2446120231.

It is a happy number.

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

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, 15478 + ... + 53665.

It is an arithmetic number, because the mean of its divisors is an integer number (247570092).

Almost surely, 2^1320216442 is an apocalyptic number.

1320216442 is a deficient number, since it is larger than the sum of its proper divisors (660344294).

1320216442 is an equidigital number, since it uses as much as digits as its factorization.

1320216442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78692.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1320216442 is about 36334.7828120659. The cubic root of 1320216442 is about 1097.0212639017.

Adding to 1320216442 its reverse (2446120231), we get a palindrome (3766336673).

The spelling of 1320216442 in words is "one billion, three hundred twenty million, two hundred sixteen thousand, four hundred forty-two".