998402 has 16 divisors (see below), whose sum is σ = 1555200. Its totient is φ = 480480.

The previous prime is 998399. The next prime is 998411. The reversal of 998402 is 204899.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11174 + ... + 11262.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

2⁹⁹⁸⁴⁰² is an apocalyptic number.

998402 is a deficient number, since it is larger than the sum of its proper divisors (556798).

998402 is a wasteful number, since it uses less digits than its factorization.

998402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

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

The square root of 998402 is about 999.2006805442. The cubic root of 998402 is about 99.9467049347.

The spelling of 998402 in words is "nine hundred ninety-eight thousand, four hundred two".