383052321 has 28 divisors (see below), whose sum is σ = 580343652. Its totient is φ = 252688896.

The previous prime is 383052301. The next prime is 383052349. The reversal of 383052321 is 123250383.

383052321 is a `hidden beast` number, since 38 + 305 + 2 + 321 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 91872225 + 291180096 = 9585^2 + 17064^2 .

It is not a de Polignac number, because 383052321 - 2⁵ = 383052289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (383052301) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 68005 + ... + 73421.

It is an arithmetic number, because the mean of its divisors is an integer number (20726559).

Almost surely, 2^383052321 is an apocalyptic number.

It is an amenable number.

383052321 is a deficient number, since it is larger than the sum of its proper divisors (197291331).

383052321 is an frugal number, since it uses more digits than its factorization.

383052321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532 (or 5517 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 383052321 is about 19571.7224842373. The cubic root of 383052321 is about 726.2498115797.

The spelling of 383052321 in words is "three hundred eighty-three million, fifty-two thousand, three hundred twenty-one".