299842 has 4 divisors (see below), whose sum is σ = 449766. Its totient is φ = 149920.

The previous prime is 299807. The next prime is 299843. The reversal of 299842 is 248992.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 251001 + 48841 = 501^2 + 221^2 .

It is a d-powerful number, because it can be written as 2¹⁴ + 9⁴ + 8⁴ + 9⁴ + 4⁶ + 2¹⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 299798 and 299807.

It is not an unprimeable number, because it can be changed into a prime (299843) by changing a digit.

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, 74959 + ... + 74962.

2²⁹⁹⁸⁴² is an apocalyptic number.

299842 is a deficient number, since it is larger than the sum of its proper divisors (149924).

299842 is a wasteful number, since it uses less digits than its factorization.

299842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149923.

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

The square root of 299842 is about 547.5783049026. The cubic root of 299842 is about 66.9315406771.

The spelling of 299842 in words is "two hundred ninety-nine thousand, eight hundred forty-two".