382170728 has 32 divisors (see below), whose sum is σ = 743904000. Its totient is φ = 183866880.

The previous prime is 382170653. The next prime is 382170739. The reversal of 382170728 is 827071283.

It is a junction number, because it is equal to n+sod(n) for n = 382170691 and 382170700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40088 + ... + 48696.

It is an arithmetic number, because the mean of its divisors is an integer number (23247000).

Almost surely, 2^382170728 is an apocalyptic number.

It is an amenable number.

382170728 is a deficient number, since it is larger than the sum of its proper divisors (361733272).

382170728 is a wasteful number, since it uses less digits than its factorization.

382170728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8825 (or 8821 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 382170728 is about 19549.1873999918. The cubic root of 382170728 is about 725.6922301680.

The spelling of 382170728 in words is "three hundred eighty-two million, one hundred seventy thousand, seven hundred twenty-eight".