998322388 has 24 divisors (see below), whose sum is σ = 2061054464. Its totient is φ = 414050400.

The previous prime is 998322373. The next prime is 998322427. The reversal of 998322388 is 883223899.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574203 + ... + 575938.

Almost surely, 2^998322388 is an apocalyptic number.

It is an amenable number.

998322388 is an abundant number, since it is smaller than the sum of its proper divisors (1062732076).

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

998322388 is a wasteful number, since it uses less digits than its factorization.

998322388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150183 (or 1150181 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The square root of 998322388 is about 31596.2400927705. The cubic root of 998322388 is about 999.4404829991.

The spelling of 998322388 in words is "nine hundred ninety-eight million, three hundred twenty-two thousand, three hundred eighty-eight".