320679742 has 8 divisors (see below), whose sum is σ = 482808600. Its totient is φ = 159743544.

The previous prime is 320679719. The next prime is 320679743. The reversal of 320679742 is 247976023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 320679695 and 320679704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320679743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297492 + ... + 298567.

It is an arithmetic number, because the mean of its divisors is an integer number (60351075).

Almost surely, 2^320679742 is an apocalyptic number.

320679742 is a deficient number, since it is larger than the sum of its proper divisors (162128858).

320679742 is a wasteful number, since it uses less digits than its factorization.

320679742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596330.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 320679742 is about 17907.5331076059. The cubic root of 320679742 is about 684.4743455150.

The spelling of 320679742 in words is "three hundred twenty million, six hundred seventy-nine thousand, seven hundred forty-two".