209480459 has 8 divisors (see below), whose sum is σ = 212852448. Its totient is φ = 206120320.

The previous prime is 209480413. The next prime is 209480461. The reversal of 209480459 is 954084902.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-209480459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (209480059) 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, 36899 + ... + 42195.

It is an arithmetic number, because the mean of its divisors is an integer number (26606556).

Almost surely, 2^209480459 is an apocalyptic number.

209480459 is a deficient number, since it is larger than the sum of its proper divisors (3371989).

209480459 is an equidigital number, since it uses as much as digits as its factorization.

209480459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5925.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 209480459 is about 14473.4397777446. The cubic root of 209480459 is about 593.9016141131.

The spelling of 209480459 in words is "two hundred nine million, four hundred eighty thousand, four hundred fifty-nine".