299431920 has 160 divisors (see below), whose sum is σ = 957063744. Its totient is φ = 77414400.

The previous prime is 299431907. The next prime is 299431939. The reversal of 299431920 is 29134992.

299431920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1654230 + ... + 1654410.

Almost surely, 2^299431920 is an apocalyptic number.

299431920 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 299431920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478531872).

299431920 is an abundant number, since it is smaller than the sum of its proper divisors (657631824).

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

299431920 is a wasteful number, since it uses less digits than its factorization.

299431920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 299431920 is about 17304.1012479701. The cubic root of 299431920 is about 669.0101370121.

The spelling of 299431920 in words is "two hundred ninety-nine million, four hundred thirty-one thousand, nine hundred twenty".