299819505 has 16 divisors (see below), whose sum is σ = 479983680. Its totient is φ = 159812928.

The previous prime is 299819503. The next prime is 299819579. The reversal of 299819505 is 505918992.

It is a happy number.

It is not a de Polignac number, because 299819505 - 2¹ = 299819503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (299819501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28099 + ... + 37271.

It is an arithmetic number, because the mean of its divisors is an integer number (29998980).

Almost surely, 2^299819505 is an apocalyptic number.

It is an amenable number.

299819505 is a deficient number, since it is larger than the sum of its proper divisors (180164175).

299819505 is a wasteful number, since it uses less digits than its factorization.

299819505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11360.

The product of its (nonzero) digits is 291600, while the sum is 48.

The square root of 299819505 is about 17315.2968498955. The cubic root of 299819505 is about 669.2986683702.

The spelling of 299819505 in words is "two hundred ninety-nine million, eight hundred nineteen thousand, five hundred five".