1393080906 has 16 divisors (see below), whose sum is σ = 3184185024. Its totient is φ = 398023104.

The previous prime is 1393080889. The next prime is 1393080959. The reversal of 1393080906 is 6090803931.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16584255 + ... + 16584338.

It is an arithmetic number, because the mean of its divisors is an integer number (199011564).

Almost surely, 2^1393080906 is an apocalyptic number.

1393080906 is an abundant number, since it is smaller than the sum of its proper divisors (1791104118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1393080906 is a wasteful number, since it uses less digits than its factorization.

1393080906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33168605.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 1393080906 is about 37323.9990622656. Note that the first 3 decimals coincide. The cubic root of 1393080906 is about 1116.8429657735.

The spelling of 1393080906 in words is "one billion, three hundred ninety-three million, eighty thousand, nine hundred six".