1089537198 has 32 divisors (see below), whose sum is σ = 2235879072. Its totient is φ = 353740800.

The previous prime is 1089537181. The next prime is 1089537203. The reversal of 1089537198 is 8917359801.

It is a self number, because there is not a number n which added to its sum of digits gives 1089537198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162268 + ... + 168848.

It is an arithmetic number, because the mean of its divisors is an integer number (69871221).

Almost surely, 2^1089537198 is an apocalyptic number.

1089537198 is an abundant number, since it is smaller than the sum of its proper divisors (1146341874).

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

1089537198 is a wasteful number, since it uses less digits than its factorization.

1089537198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7300.

The product of its (nonzero) digits is 544320, while the sum is 51.

The square root of 1089537198 is about 33008.1383601075. The cubic root of 1089537198 is about 1028.9967917652.

The spelling of 1089537198 in words is "one billion, eighty-nine million, five hundred thirty-seven thousand, one hundred ninety-eight".