3780328 has 8 divisors (see below), whose sum is σ = 7088130. Its totient is φ = 1890160.

The previous prime is 3780319. The next prime is 3780367. The reversal of 3780328 is 8230873.

It can be written as a sum of positive squares in only one way, i.e., 3104644 + 675684 = 1762^2 + 822^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 3780328.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 236263 + ... + 236278.

Almost surely, 2^3780328 is an apocalyptic number.

It is an amenable number.

3780328 is a deficient number, since it is larger than the sum of its proper divisors (3307802).

3780328 is a wasteful number, since it uses less digits than its factorization.

3780328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472547 (or 472543 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 3780328 is about 1944.3065601905. The cubic root of 3780328 is about 155.7793285815.

The spelling of 3780328 in words is "three million, seven hundred eighty thousand, three hundred twenty-eight".