432840989 has 8 divisors (see below), whose sum is σ = 496366080. Its totient is φ = 369738576.

The previous prime is 432840949. The next prime is 432841009. The reversal of 432840989 is 989048234.

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-432840989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432840949) 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, 103469 + ... + 107570.

It is an arithmetic number, because the mean of its divisors is an integer number (62045760).

Almost surely, 2^432840989 is an apocalyptic number.

It is an amenable number.

432840989 is a deficient number, since it is larger than the sum of its proper divisors (63525091).

432840989 is a wasteful number, since it uses less digits than its factorization.

432840989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211339.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 432840989 is about 20804.8309053450. The cubic root of 432840989 is about 756.4428581375.

The spelling of 432840989 in words is "four hundred thirty-two million, eight hundred forty thousand, nine hundred eighty-nine".