49180209 has 16 divisors (see below), whose sum is σ = 71616384. Its totient is φ = 29836800.

The previous prime is 49180207. The next prime is 49180249. The reversal of 49180209 is 90208194.

It is not a de Polignac number, because 49180209 - 2¹ = 49180207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49180209.

It is not an unprimeable number, because it can be changed into a prime (49180207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6112 + ... + 11649.

It is an arithmetic number, because the mean of its divisors is an integer number (4476024).

Almost surely, 2^49180209 is an apocalyptic number.

It is an amenable number.

49180209 is a deficient number, since it is larger than the sum of its proper divisors (22436175).

49180209 is a wasteful number, since it uses less digits than its factorization.

49180209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17848.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 49180209 is about 7012.8602581258. The cubic root of 49180209 is about 366.3786206999.

The spelling of 49180209 in words is "forty-nine million, one hundred eighty thousand, two hundred nine".