1989244598 has 24 divisors (see below), whose sum is σ = 3324745704. Its totient is φ = 891807840.

The previous prime is 1989244571. The next prime is 1989244627. The reversal of 1989244598 is 8954429891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38636 + ... + 73967.

It is an arithmetic number, because the mean of its divisors is an integer number (138531071).

Almost surely, 2^1989244598 is an apocalyptic number.

1989244598 is a deficient number, since it is larger than the sum of its proper divisors (1335501106).

1989244598 is a wasteful number, since it uses less digits than its factorization.

1989244598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112700 (or 112689 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 59.

The square root of 1989244598 is about 44600.9483979881. The cubic root of 1989244598 is about 1257.6584963595.

The spelling of 1989244598 in words is "one billion, nine hundred eighty-nine million, two hundred forty-four thousand, five hundred ninety-eight".