328742 has 4 divisors (see below), whose sum is σ = 493116. Its totient is φ = 164370.

The previous prime is 328721. The next prime is 328753. The reversal of 328742 is 247823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247823 = 79 ⋅3137.

It is a d-powerful number, because it can be written as 3³ + 2¹⁰ + 7 + 8⁶ + 4 + 2¹⁶ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328742.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82184 + ... + 82187.

It is an arithmetic number, because the mean of its divisors is an integer number (123279).

2³²⁸⁷⁴² is an apocalyptic number.

328742 is a deficient number, since it is larger than the sum of its proper divisors (164374).

328742 is a wasteful number, since it uses less digits than its factorization.

328742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164373.

The product of its digits is 2688, while the sum is 26.

The square root of 328742 is about 573.3602706850. The cubic root of 328742 is about 69.0163092442.

The spelling of 328742 in words is "three hundred twenty-eight thousand, seven hundred forty-two".