998441622 has 12 divisors (see below), whose sum is σ = 2163290220. Its totient is φ = 332813868.

The previous prime is 998441599. The next prime is 998441623. The reversal of 998441622 is 226144899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998441623) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 27734472 + ... + 27734507.

It is an arithmetic number, because the mean of its divisors is an integer number (180274185).

Almost surely, 2^998441622 is an apocalyptic number.

998441622 is an abundant number, since it is smaller than the sum of its proper divisors (1164848598).

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

998441622 is a wasteful number, since it uses less digits than its factorization.

998441622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55468987 (or 55468984 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 998441622 is about 31598.1268748640. The cubic root of 998441622 is about 999.4802705948.

The spelling of 998441622 in words is "nine hundred ninety-eight million, four hundred forty-one thousand, six hundred twenty-two".