383728319 has 8 divisors (see below), whose sum is σ = 427496160. Its totient is φ = 341996256.

The previous prime is 383728277. The next prime is 383728327. The reversal of 383728319 is 913827383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 383728319 - 2²⁰ = 382679743 is a prime.

It is a super-2 number, since 2×383728319² = 294494845605131522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 383728319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383728379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508547 + ... + 509300.

It is an arithmetic number, because the mean of its divisors is an integer number (53437020).

Almost surely, 2^383728319 is an apocalyptic number.

383728319 is a deficient number, since it is larger than the sum of its proper divisors (43767841).

383728319 is a wasteful number, since it uses less digits than its factorization.

383728319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017889.

The product of its digits is 217728, while the sum is 44.

The square root of 383728319 is about 19588.9846342275. The cubic root of 383728319 is about 726.6767810177.

The spelling of 383728319 in words is "three hundred eighty-three million, seven hundred twenty-eight thousand, three hundred nineteen".