998305422 has 16 divisors (see below), whose sum is σ = 1998594000. Its totient is φ = 332437952.

The previous prime is 998305421. The next prime is 998305453. The reversal of 998305422 is 224503899.

It is a super-2 number, since 2×998305422² = 1993227431189196168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998305421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76047 + ... + 88202.

It is an arithmetic number, because the mean of its divisors is an integer number (124912125).

Almost surely, 2^998305422 is an apocalyptic number.

998305422 is an abundant number, since it is smaller than the sum of its proper divisors (1000288578).

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

998305422 is a wasteful number, since it uses less digits than its factorization.

998305422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165267.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 998305422 is about 31595.9716103177. The cubic root of 998305422 is about 999.4348212999.

The spelling of 998305422 in words is "nine hundred ninety-eight million, three hundred five thousand, four hundred twenty-two".