1320209942 has 8 divisors (see below), whose sum is σ = 2009872056. Its totient is φ = 650252592.

The previous prime is 1320209939. The next prime is 1320209971. The reversal of 1320209942 is 2499020231.

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

It is a junction number, because it is equal to n+sod(n) for n = 1320209899 and 1320209908.

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, 4926023 + ... + 4926290.

It is an arithmetic number, because the mean of its divisors is an integer number (251234007).

Almost surely, 2^1320209942 is an apocalyptic number.

1320209942 is a deficient number, since it is larger than the sum of its proper divisors (689662114).

1320209942 is an equidigital number, since it uses as much as digits as its factorization.

1320209942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9852382.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1320209942 is about 36334.6933659829. The cubic root of 1320209942 is about 1097.0194635277.

The spelling of 1320209942 in words is "one billion, three hundred twenty million, two hundred nine thousand, nine hundred forty-two".