299845 has 16 divisors (see below), whose sum is σ = 443520. Its totient is φ = 189504.

The previous prime is 299843. The next prime is 299857. The reversal of 299845 is 548992.

299845 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 299845 - 2¹ = 299843 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299843) 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, 126 + ... + 784.

It is an arithmetic number, because the mean of its divisors is an integer number (27720).

2²⁹⁹⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

299845 is a deficient number, since it is larger than the sum of its proper divisors (143675).

299845 is a wasteful number, since it uses less digits than its factorization.

299845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684.

The product of its digits is 25920, while the sum is 37.

The square root of 299845 is about 547.5810442300. The cubic root of 299845 is about 66.9317638990.

The spelling of 299845 in words is "two hundred ninety-nine thousand, eight hundred forty-five".