328316242 has 4 divisors (see below), whose sum is σ = 492474366. Its totient is φ = 164158120.

The previous prime is 328316239. The next prime is 328316267. The reversal of 328316242 is 242613823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242613823 = 443 ⋅547661.

It can be written as a sum of positive squares in only one way, i.e., 175324081 + 152992161 = 13241^2 + 12369^2 .

It is a super-2 number, since 2×328316242² = 215583109522005128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82079059 + ... + 82079062.

Almost surely, 2^328316242 is an apocalyptic number.

328316242 is a deficient number, since it is larger than the sum of its proper divisors (164158124).

328316242 is a wasteful number, since it uses less digits than its factorization.

328316242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164158123.

The product of its digits is 13824, while the sum is 31.

The square root of 328316242 is about 18119.4989445073. The cubic root of 328316242 is about 689.8650173538.

The spelling of 328316242 in words is "three hundred twenty-eight million, three hundred sixteen thousand, two hundred forty-two".