299904 has 64 divisors (see below), whose sum is σ = 881280. Its totient is φ = 89600.

The previous prime is 299903. The next prime is 299909. The reversal of 299904 is 409992.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299903) 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, 4189 + ... + 4259.

It is an arithmetic number, because the mean of its divisors is an integer number (13770).

2²⁹⁹⁹⁰⁴ is an apocalyptic number.

299904 is a gapful number since it is divisible by the number (24) 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 299904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440640).

299904 is an abundant number, since it is smaller than the sum of its proper divisors (581376).

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

299904 is a wasteful number, since it uses less digits than its factorization.

299904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 299904 is about 547.6349148840. The cubic root of 299904 is about 66.9361536283.

The spelling of 299904 in words is "two hundred ninety-nine thousand, nine hundred four".