328320742 has 8 divisors (see below), whose sum is σ = 492559776. Its totient is φ = 164134152.

The previous prime is 328320739. The next prime is 328320749. The reversal of 328320742 is 247023823.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328320749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12723 + ... + 28609.

It is an arithmetic number, because the mean of its divisors is an integer number (61569972).

Almost surely, 2^328320742 is an apocalyptic number.

328320742 is a deficient number, since it is larger than the sum of its proper divisors (164239034).

328320742 is a wasteful number, since it uses less digits than its factorization.

328320742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26222.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 328320742 is about 18119.6231197009. The cubic root of 328320742 is about 689.8681691710.

It can be divided in two parts, 3283 and 20742, that added together give a square (24025 = 155²).

The spelling of 328320742 in words is "three hundred twenty-eight million, three hundred twenty thousand, seven hundred forty-two".