299397138 has 24 divisors (see below), whose sum is σ = 608436528. Its totient is φ = 98195592.

The previous prime is 299397127. The next prime is 299397143. The reversal of 299397138 is 831793992.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346495 + ... + 347357.

It is an arithmetic number, because the mean of its divisors is an integer number (25351522).

Almost surely, 2^299397138 is an apocalyptic number.

299397138 is an abundant number, since it is smaller than the sum of its proper divisors (309039390).

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

299397138 is an frugal number, since it uses more digits than its factorization.

299397138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798 (or 935 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 299397138 is about 17303.0961969238. The cubic root of 299397138 is about 668.9842319453.

The spelling of 299397138 in words is "two hundred ninety-nine million, three hundred ninety-seven thousand, one hundred thirty-eight".