328769644 has 12 divisors (see below), whose sum is σ = 657539344. Its totient is φ = 140901264.

The previous prime is 328769629. The next prime is 328769657. The reversal of 328769644 is 446967823.

328769644 is an admirable number.

It is a super-3 number, since 3×328769644³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5870859 + ... + 5870914.

Almost surely, 2^328769644 is an apocalyptic number.

It is an amenable number.

328769644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

328769644 is a wasteful number, since it uses less digits than its factorization.

328769644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11741784 (or 11741782 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 49.

The square root of 328769644 is about 18132.0060666215. The cubic root of 328769644 is about 690.1824372313.

The spelling of 328769644 in words is "three hundred twenty-eight million, seven hundred sixty-nine thousand, six hundred forty-four".