1893198608 has 160 divisors (see below), whose sum is σ = 4756838400. Its totient is φ = 710387712.

The previous prime is 1893198577. The next prime is 1893198617. The reversal of 1893198608 is 8068913981.

It is a self number, because there is not a number n which added to its sum of digits gives 1893198608.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2133941 + ... + 2134827.

It is an arithmetic number, because the mean of its divisors is an integer number (29730240).

Almost surely, 2^1893198608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1893198608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2378419200).

1893198608 is an abundant number, since it is smaller than the sum of its proper divisors (2863639792).

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

1893198608 is a wasteful number, since it uses less digits than its factorization.

1893198608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 53.

The square root of 1893198608 is about 43510.9021740529. The cubic root of 1893198608 is about 1237.0826770622.

The spelling of 1893198608 in words is "one billion, eight hundred ninety-three million, one hundred ninety-eight thousand, six hundred eight".