1998098922 has 16 divisors (see below), whose sum is σ = 3996639360. Its totient is φ = 665959392.

The previous prime is 1998098917. The next prime is 1998098933. The reversal of 1998098922 is 2298908991.

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, 86079 + ... + 106797.

It is an arithmetic number, because the mean of its divisors is an integer number (249789960).

Almost surely, 2^1998098922 is an apocalyptic number.

1998098922 is an abundant number, since it is smaller than the sum of its proper divisors (1998540438).

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

1998098922 is a wasteful number, since it uses less digits than its factorization.

1998098922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36797.

The product of its (nonzero) digits is 1679616, while the sum is 57.

The square root of 1998098922 is about 44700.0997985463. The cubic root of 1998098922 is about 1259.5217219776.

The spelling of 1998098922 in words is "one billion, nine hundred ninety-eight million, ninety-eight thousand, nine hundred twenty-two".