383447245 has 8 divisors (see below), whose sum is σ = 463496184. Its totient is φ = 304518144.

The previous prime is 383447213. The next prime is 383447249. The reversal of 383447245 is 542744383.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 141395881 + 242051364 = 11891^2 + 15558^2 .

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 383447245 - 2⁵ = 383447213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 383447198 and 383447207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383447249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279204 + ... + 280573.

It is an arithmetic number, because the mean of its divisors is an integer number (57937023).

Almost surely, 2^383447245 is an apocalyptic number.

It is an amenable number.

383447245 is a deficient number, since it is larger than the sum of its proper divisors (80048939).

383447245 is a wasteful number, since it uses less digits than its factorization.

383447245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559919.

The product of its digits is 322560, while the sum is 40.

The square root of 383447245 is about 19581.8090328754. The cubic root of 383447245 is about 726.4993118470.

The spelling of 383447245 in words is "three hundred eighty-three million, four hundred forty-seven thousand, two hundred forty-five".