299388 has 24 divisors (see below), whose sum is σ = 711760. Its totient is φ = 97920.

The previous prime is 299371. The next prime is 299389. The reversal of 299388 is 883992.

299388 = T₆₇ + T₆₈ + ... + T₁₂₇.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 299388.

It is not an unprimeable number, because it can be changed into a prime (299389) by changing a digit.

299388 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 7 ways as a sum of consecutive naturals, for example, 528 + ... + 936.

2²⁹⁹³⁸⁸ is an apocalyptic number.

It is an amenable number.

299388 is an abundant number, since it is smaller than the sum of its proper divisors (412372).

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

299388 is a wasteful number, since it uses less digits than its factorization.

299388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 475 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 299388 is about 547.1635952802. The cubic root of 299388 is about 66.8977425779.

It can be divided in two parts, 2993 and 88, that added together give a triangular number (3081 = T₇₈).

The spelling of 299388 in words is "two hundred ninety-nine thousand, three hundred eighty-eight".