2000430989 has 8 divisors (see below), whose sum is σ = 2011147320. Its totient is φ = 1989743616.

The previous prime is 2000430923. The next prime is 2000430997. The reversal of 2000430989 is 9890340002.

It can be written as a sum of positive squares in 4 ways, for example, as 127012900 + 1873418089 = 11270^2 + 43283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000430989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000438989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139067 + ... + 152775.

It is an arithmetic number, because the mean of its divisors is an integer number (251393415).

Almost surely, 2^2000430989 is an apocalyptic number.

It is an amenable number.

2000430989 is a deficient number, since it is larger than the sum of its proper divisors (10716331).

2000430989 is a wasteful number, since it uses less digits than its factorization.

2000430989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14479.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 2000430989 is about 44726.1778939359. The cubic root of 2000430989 is about 1260.0115454137.

The spelling of 2000430989 in words is "two billion, four hundred thirty thousand, nine hundred eighty-nine".