1889579198 has 12 divisors (see below), whose sum is σ = 3069169128. Its totient is φ = 872113320.

The previous prime is 1889579137. The next prime is 1889579261. The reversal of 1889579198 is 8919759881.

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, 2794898 + ... + 2795573.

It is an arithmetic number, because the mean of its divisors is an integer number (255764094).

Almost surely, 2^1889579198 is an apocalyptic number.

1889579198 is a deficient number, since it is larger than the sum of its proper divisors (1179589930).

1889579198 is a wasteful number, since it uses less digits than its factorization.

1889579198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590499 (or 5590486 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 65.

The square root of 1889579198 is about 43469.2902863619. The cubic root of 1889579198 is about 1236.2938241320.

The spelling of 1889579198 in words is "one billion, eight hundred eighty-nine million, five hundred seventy-nine thousand, one hundred ninety-eight".