999342 has 24 divisors (see below), whose sum is σ = 2204280. Its totient is φ = 327120.

The previous prime is 999331. The next prime is 999359. The reversal of 999342 is 243999.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 999297 and 999306.

It is a congruent number.

It is an unprimeable number.

999342 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 592 + ... + 1532.

It is an arithmetic number, because the mean of its divisors is an integer number (91845).

2⁹⁹⁹³⁴² is an apocalyptic number.

999342 is an abundant number, since it is smaller than the sum of its proper divisors (1204938).

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

999342 is a wasteful number, since it uses less digits than its factorization.

999342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 1005 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 999342 is about 999.6709458617. The cubic root of 999342 is about 99.9780618542.

The spelling of 999342 in words is "nine hundred ninety-nine thousand, three hundred forty-two".