1090000198 has 12 divisors (see below), whose sum is σ = 1901939292. Its totient is φ = 467142900.

The previous prime is 1090000187. The next prime is 1090000229. The reversal of 1090000198 is 8910000901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5561128 + ... + 5561323.

It is an arithmetic number, because the mean of its divisors is an integer number (158494941).

Almost surely, 2^1090000198 is an apocalyptic number.

1090000198 is a deficient number, since it is larger than the sum of its proper divisors (811939094).

1090000198 is a wasteful number, since it uses less digits than its factorization.

1090000198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11122467 (or 11122460 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 1090000198 is about 33015.1510370618. The cubic root of 1090000198 is about 1029.1425288866.

The spelling of 1090000198 in words is "one billion, ninety million, one hundred ninety-eight", and thus it is an aban number.