328666742 has 8 divisors (see below), whose sum is σ = 505024632. Its totient is φ = 160325200.

The previous prime is 328666721. The next prime is 328666747. The reversal of 328666742 is 247666823.

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 = 328666693 and 328666702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328666747) 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, 2003984 + ... + 2004147.

It is an arithmetic number, because the mean of its divisors is an integer number (63128079).

Almost surely, 2^328666742 is an apocalyptic number.

328666742 is a deficient number, since it is larger than the sum of its proper divisors (176357890).

328666742 is a wasteful number, since it uses less digits than its factorization.

328666742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008174.

The product of its digits is 580608, while the sum is 44.

The square root of 328666742 is about 18129.1682655328. The cubic root of 328666742 is about 690.1104227115.

The spelling of 328666742 in words is "three hundred twenty-eight million, six hundred sixty-six thousand, seven hundred forty-two".