2009190245 has 16 divisors (see below), whose sum is σ = 2579537280. Its totient is φ = 1497787200.

The previous prime is 2009190241. The next prime is 2009190251. The reversal of 2009190245 is 5420919002.

It is not a de Polignac number, because 2009190245 - 2² = 2009190241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009190241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167561 + ... + 179150.

It is an arithmetic number, because the mean of its divisors is an integer number (161221080).

Almost surely, 2^2009190245 is an apocalyptic number.

It is an amenable number.

2009190245 is a deficient number, since it is larger than the sum of its proper divisors (570347035).

2009190245 is a wasteful number, since it uses less digits than its factorization.

2009190245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346796.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 2009190245 is about 44823.9918458854. The cubic root of 2009190245 is about 1261.8479320035.

The spelling of 2009190245 in words is "two billion, nine million, one hundred ninety thousand, two hundred forty-five".