689132242 has 16 divisors (see below), whose sum is σ = 1088683200. Its totient is φ = 326257200.

The previous prime is 689132239. The next prime is 689132243. The reversal of 689132242 is 242231986.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (689132243) 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 7 ways as a sum of consecutive naturals, for example, 93384 + ... + 100492.

It is an arithmetic number, because the mean of its divisors is an integer number (68042700).

Almost surely, 2^689132242 is an apocalyptic number.

689132242 is a deficient number, since it is larger than the sum of its proper divisors (399550958).

689132242 is a wasteful number, since it uses less digits than its factorization.

689132242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9681.

The product of its digits is 41472, while the sum is 37.

The square root of 689132242 is about 26251.3283854360. The cubic root of 689132242 is about 883.2850024425.

The spelling of 689132242 in words is "six hundred eighty-nine million, one hundred thirty-two thousand, two hundred forty-two".