328471772 has 12 divisors (see below), whose sum is σ = 605079720. Its totient is φ = 155591856.

The previous prime is 328471771. The next prime is 328471823. The reversal of 328471772 is 277174823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328471771) 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 in 3 ways as a sum of consecutive naturals, for example, 2160923 + ... + 2161074.

It is an arithmetic number, because the mean of its divisors is an integer number (50423310).

Almost surely, 2^328471772 is an apocalyptic number.

It is an amenable number.

328471772 is a deficient number, since it is larger than the sum of its proper divisors (276607948).

328471772 is a wasteful number, since it uses less digits than its factorization.

328471772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322020 (or 4322018 counting only the distinct ones).

The product of its digits is 131712, while the sum is 41.

The square root of 328471772 is about 18123.7902216948. The cubic root of 328471772 is about 689.9739344631.

The spelling of 328471772 in words is "three hundred twenty-eight million, four hundred seventy-one thousand, seven hundred seventy-two".