299428 has 6 divisors (see below), whose sum is σ = 524006. Its totient is φ = 149712.

The previous prime is 299419. The next prime is 299447. The reversal of 299428 is 824992.

It can be written as a sum of positive squares in only one way, i.e., 191844 + 107584 = 438^2 + 328^2 .

It is a junction number, because it is equal to n+sod(n) for n = 299393 and 299402.

It is an unprimeable number.

299428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37425 + ... + 37432.

2²⁹⁹⁴²⁸ is an apocalyptic number.

It is an amenable number.

299428 is a deficient number, since it is larger than the sum of its proper divisors (224578).

299428 is a wasteful number, since it uses less digits than its factorization.

299428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74861 (or 74859 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 299428 is about 547.2001461988. The cubic root of 299428 is about 66.9007217560.

It can be divided in two parts, 299 and 428, that added together give a palindrome (727).

The spelling of 299428 in words is "two hundred ninety-nine thousand, four hundred twenty-eight".