328241661 has 48 divisors (see below), whose sum is σ = 521623872. Its totient is φ = 182730240.

The previous prime is 328241659. The next prime is 328241687. The reversal of 328241661 is 166142823.

It is not a de Polignac number, because 328241661 - 2¹ = 328241659 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328241611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 264735 + ... + 265971.

It is an arithmetic number, because the mean of its divisors is an integer number (10867164).

Almost surely, 2^328241661 is an apocalyptic number.

It is an amenable number.

328241661 is a deficient number, since it is larger than the sum of its proper divisors (193382211).

328241661 is a wasteful number, since it uses less digits than its factorization.

328241661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322 (or 1311 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 328241661 is about 18117.4407960948. The cubic root of 328241661 is about 689.8127763407.

The spelling of 328241661 in words is "three hundred twenty-eight million, two hundred forty-one thousand, six hundred sixty-one".