389448399 has 8 divisors (see below), whose sum is σ = 529062192. Its totient is φ = 254733440.

The previous prime is 389448383. The next prime is 389448403. The reversal of 389448399 is 993844983.

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 389448399 - 2⁴ = 389448383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389448329) 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, 1224522 + ... + 1224839.

It is an arithmetic number, because the mean of its divisors is an integer number (66132774).

Almost surely, 2^389448399 is an apocalyptic number.

389448399 is a deficient number, since it is larger than the sum of its proper divisors (139613793).

389448399 is a wasteful number, since it uses less digits than its factorization.

389448399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449417.

The product of its digits is 6718464, while the sum is 57.

The square root of 389448399 is about 19734.4470153080. The cubic root of 389448399 is about 730.2697439370.

The spelling of 389448399 in words is "three hundred eighty-nine million, four hundred forty-eight thousand, three hundred ninety-nine".