998042 has 4 divisors (see below), whose sum is σ = 1497066. Its totient is φ = 499020.

The previous prime is 998029. The next prime is 998069. The reversal of 998042 is 240899.

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., 958441 + 39601 = 979^2 + 199^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249509 + ... + 249512.

2⁹⁹⁸⁰⁴² is an apocalyptic number.

998042 is a deficient number, since it is larger than the sum of its proper divisors (499024).

998042 is a wasteful number, since it uses less digits than its factorization.

998042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499023.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 998042 is about 999.0205203098. The cubic root of 998042 is about 99.9346906896.

The spelling of 998042 in words is "nine hundred ninety-eight thousand, forty-two".