688246342 has 16 divisors (see below), whose sum is σ = 1231149312. Its totient is φ = 282138120.

The previous prime is 688246337. The next prime is 688246379. The reversal of 688246342 is 243642886.

It is a congruent number.

It is an unprimeable number.

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, 1068384 + ... + 1069027.

It is an arithmetic number, because the mean of its divisors is an integer number (76946832).

Almost surely, 2^688246342 is an apocalyptic number.

688246342 is a deficient number, since it is larger than the sum of its proper divisors (542902970).

688246342 is a wasteful number, since it uses less digits than its factorization.

688246342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137443.

The product of its digits is 442368, while the sum is 43.

The square root of 688246342 is about 26234.4495272914. The cubic root of 688246342 is about 882.9063437538.

The spelling of 688246342 in words is "six hundred eighty-eight million, two hundred forty-six thousand, three hundred forty-two".