299520 has 120 divisors (see below), whose sum is σ = 1117116. Its totient is φ = 73728.

The previous prime is 299513. The next prime is 299521. The reversal of 299520 is 25992.

299520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 278784 + 20736 = 528^2 + 144^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a nialpdrome in base 8 and base 13.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (299521) by changing a digit.

299520 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23034 + ... + 23046.

2²⁹⁹⁵²⁰ is an apocalyptic number.

299520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 299520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558558).

299520 is an abundant number, since it is smaller than the sum of its proper divisors (817596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

299520 is a wasteful number, since it uses less digits than its factorization.

299520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 299520 is about 547.2842040476. The cubic root of 299520 is about 66.9075728590.

The spelling of 299520 in words is "two hundred ninety-nine thousand, five hundred twenty".