328872636 has 30 divisors (see below), whose sum is σ = 859738880. Its totient is φ = 109624104.

The previous prime is 328872631. The next prime is 328872637. The reversal of 328872636 is 636278823.

328872636 is a `hidden beast` number, since 3 + 2 + 8 + 8 + 7 + 2 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 328872591 and 328872600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328872631) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 507196 + ... + 507843.

Almost surely, 2^328872636 is an apocalyptic number.

328872636 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

328872636 is an abundant number, since it is smaller than the sum of its proper divisors (530866244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

328872636 is a wasteful number, since it uses less digits than its factorization.

328872636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015055 (or 1015044 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 328872636 is about 18134.8459050525. The cubic root of 328872636 is about 690.2544996915.

The spelling of 328872636 in words is "three hundred twenty-eight million, eight hundred seventy-two thousand, six hundred thirty-six".