385110728 has 8 divisors (see below), whose sum is σ = 722082630. Its totient is φ = 192555360.

The previous prime is 385110727. The next prime is 385110757. The reversal of 385110728 is 827011583.

It can be written as a sum of positive squares in only one way, i.e., 360924004 + 24186724 = 18998^2 + 4918^2 .

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

It is not an unprimeable number, because it can be changed into a prime (385110727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24069413 + ... + 24069428.

Almost surely, 2^385110728 is an apocalyptic number.

It is an amenable number.

385110728 is a deficient number, since it is larger than the sum of its proper divisors (336971902).

385110728 is a wasteful number, since it uses less digits than its factorization.

385110728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48138847 (or 48138843 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 385110728 is about 19624.2382782110. The cubic root of 385110728 is about 727.5483704056.

The spelling of 385110728 in words is "three hundred eighty-five million, one hundred ten thousand, seven hundred twenty-eight".