209080994 has 32 divisors (see below), whose sum is σ = 348800256. Its totient is φ = 93491200.

The previous prime is 209080987. The next prime is 209081021. The reversal of 209080994 is 499080902.

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 15 ways as a sum of consecutive naturals, for example, 129794 + ... + 131394.

It is an arithmetic number, because the mean of its divisors is an integer number (10900008).

Almost surely, 2^209080994 is an apocalyptic number.

209080994 is a deficient number, since it is larger than the sum of its proper divisors (139719262).

209080994 is a wasteful number, since it uses less digits than its factorization.

209080994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 209080994 is about 14459.6332595263. The cubic root of 209080994 is about 593.5238638901.

The spelling of 209080994 in words is "two hundred nine million, eighty thousand, nine hundred ninety-four".