840989230 has 24 divisors (see below), whose sum is σ = 1520466696. Its totient is φ = 334915200.

The previous prime is 840989203. The next prime is 840989231. The reversal of 840989230 is 32989048.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840989231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1607749 + ... + 1608271.

It is an arithmetic number, because the mean of its divisors is an integer number (63352779).

Almost surely, 2^840989230 is an apocalyptic number.

840989230 is a deficient number, since it is larger than the sum of its proper divisors (679477466).

840989230 is an equidigital number, since it uses as much as digits as its factorization.

840989230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 840989230 is about 28999.8143097503. The cubic root of 840989230 is about 943.9090384142.

The spelling of 840989230 in words is "eight hundred forty million, nine hundred eighty-nine thousand, two hundred thirty".