380778328 has 16 divisors (see below), whose sum is σ = 815953680. Its totient is φ = 163190688.

The previous prime is 380778289. The next prime is 380778329. The reversal of 380778328 is 823877083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380778329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3399751 + ... + 3399862.

It is an arithmetic number, because the mean of its divisors is an integer number (50997105).

Almost surely, 2^380778328 is an apocalyptic number.

It is an amenable number.

380778328 is an abundant number, since it is smaller than the sum of its proper divisors (435175352).

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

380778328 is a wasteful number, since it uses less digits than its factorization.

380778328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6799626 (or 6799622 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 380778328 is about 19513.5421694781. The cubic root of 380778328 is about 724.8098291546.

The spelling of 380778328 in words is "three hundred eighty million, seven hundred seventy-eight thousand, three hundred twenty-eight".