1989698224 has 20 divisors (see below), whose sum is σ = 4081807944. Its totient is φ = 936328448.

The previous prime is 1989698201. The next prime is 1989698231. The reversal of 1989698224 is 4228969891.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3657262 + ... + 3657805.

Almost surely, 2^1989698224 is an apocalyptic number.

It is an amenable number.

1989698224 is an abundant number, since it is smaller than the sum of its proper divisors (2092109720).

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

1989698224 is a wasteful number, since it uses less digits than its factorization.

1989698224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7315092 (or 7315086 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 58.

The square root of 1989698224 is about 44606.0334932395. The cubic root of 1989698224 is about 1257.7540876262.

The spelling of 1989698224 in words is "one billion, nine hundred eighty-nine million, six hundred ninety-eight thousand, two hundred twenty-four".