328632866 has 8 divisors (see below), whose sum is σ = 493026240. Its totient is φ = 164290788.

The previous prime is 328632859. The next prime is 328632869. The reversal of 328632866 is 668236823.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (328632869) 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, 18395 + ... + 31553.

It is an arithmetic number, because the mean of its divisors is an integer number (61628280).

Almost surely, 2^328632866 is an apocalyptic number.

328632866 is a deficient number, since it is larger than the sum of its proper divisors (164393374).

328632866 is a wasteful number, since it uses less digits than its factorization.

328632866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25648.

The product of its digits is 497664, while the sum is 44.

The square root of 328632866 is about 18128.2339459750. The cubic root of 328632866 is about 690.0867117798.

The spelling of 328632866 in words is "three hundred twenty-eight million, six hundred thirty-two thousand, eight hundred sixty-six".