328511642 has 4 divisors (see below), whose sum is σ = 492767466. Its totient is φ = 164255820.

The previous prime is 328511629. The next prime is 328511647. The reversal of 328511642 is 246115823.

328511642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 303421561 + 25090081 = 17419^2 + 5009^2 .

It is a junction number, because it is equal to n+sod(n) for n = 328511599 and 328511608.

It is not an unprimeable number, because it can be changed into a prime (328511647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82127909 + ... + 82127912.

Almost surely, 2^328511642 is an apocalyptic number.

328511642 is a deficient number, since it is larger than the sum of its proper divisors (164255824).

328511642 is a wasteful number, since it uses less digits than its factorization.

328511642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164255823.

The product of its digits is 11520, while the sum is 32.

The square root of 328511642 is about 18124.8901238049. The cubic root of 328511642 is about 690.0018497465.

The spelling of 328511642 in words is "three hundred twenty-eight million, five hundred eleven thousand, six hundred forty-two".