299868393 has 16 divisors (see below), whose sum is σ = 459129600. Its totient is φ = 172172880.

The previous prime is 299868391. The next prime is 299868407. The reversal of 299868393 is 393868992.

It is not a de Polignac number, because 299868393 - 2¹ = 299868391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (299868391) 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, 238503 + ... + 239756.

It is an arithmetic number, because the mean of its divisors is an integer number (28695600).

Almost surely, 2^299868393 is an apocalyptic number.

It is an amenable number.

299868393 is a deficient number, since it is larger than the sum of its proper divisors (159261207).

299868393 is a wasteful number, since it uses less digits than its factorization.

299868393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478292.

The product of its digits is 5038848, while the sum is 57.

The square root of 299868393 is about 17316.7084920894. The cubic root of 299868393 is about 669.3350445838.

The spelling of 299868393 in words is "two hundred ninety-nine million, eight hundred sixty-eight thousand, three hundred ninety-three".