1322073809 has 8 divisors (see below), whose sum is σ = 1516320768. Its totient is φ = 1129171680.

The previous prime is 1322073803. The next prime is 1322073811. The reversal of 1322073809 is 9083702231.

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

It is not a de Polignac number, because 1322073809 - 2⁴ = 1322073793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322073803) 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, 334097 + ... + 338030.

It is an arithmetic number, because the mean of its divisors is an integer number (189540096).

Almost surely, 2^1322073809 is an apocalyptic number.

It is an amenable number.

1322073809 is a deficient number, since it is larger than the sum of its proper divisors (194246959).

1322073809 is an equidigital number, since it uses as much as digits as its factorization.

1322073809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672415.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1322073809 is about 36360.3329055167. The cubic root of 1322073809 is about 1097.5354766337.

The spelling of 1322073809 in words is "one billion, three hundred twenty-two million, seventy-three thousand, eight hundred nine".