688122942 has 32 divisors (see below), whose sum is σ = 1483120800. Its totient is φ = 211585920.

The previous prime is 688122899. The next prime is 688122971. The reversal of 688122942 is 249221886.

688122942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 688122894 and 688122903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197092 + ... + 200552.

It is an arithmetic number, because the mean of its divisors is an integer number (46347525).

Almost surely, 2^688122942 is an apocalyptic number.

688122942 is an abundant number, since it is smaller than the sum of its proper divisors (794997858).

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

688122942 is a wasteful number, since it uses less digits than its factorization.

688122942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6028.

The product of its digits is 110592, while the sum is 42.

The square root of 688122942 is about 26232.0975524261. The cubic root of 688122942 is about 882.8535733293.

The spelling of 688122942 in words is "six hundred eighty-eight million, one hundred twenty-two thousand, nine hundred forty-two".