299923668 has 144 divisors (see below), whose sum is σ = 871416000. Its totient is φ = 89115840.

The previous prime is 299923649. The next prime is 299923693. The reversal of 299923668 is 866329992.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 770818 + ... + 771206.

It is an arithmetic number, because the mean of its divisors is an integer number (6051500).

Almost surely, 2^299923668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 299923668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435708000).

299923668 is an abundant number, since it is smaller than the sum of its proper divisors (571492332).

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

299923668 is a wasteful number, since it uses less digits than its factorization.

299923668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 464 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 299923668 is about 17318.3044204680. The cubic root of 299923668 is about 669.3761684261.

The spelling of 299923668 in words is "two hundred ninety-nine million, nine hundred twenty-three thousand, six hundred sixty-eight".