389448249 has 8 divisors (see below), whose sum is σ = 519530592. Its totient is φ = 259499040.

The previous prime is 389448229. The next prime is 389448313. The reversal of 389448249 is 942844983.

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

It is a de Polignac number, because none of the positive numbers 2^k-389448249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389448229) 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, 26244 + ... + 38309.

It is an arithmetic number, because the mean of its divisors is an integer number (64941324).

Almost surely, 2^389448249 is an apocalyptic number.

It is an amenable number.

389448249 is a deficient number, since it is larger than the sum of its proper divisors (130082343).

389448249 is a wasteful number, since it uses less digits than its factorization.

389448249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66567.

The product of its digits is 1990656, while the sum is 51.

The square root of 389448249 is about 19734.4432148465. The cubic root of 389448249 is about 730.2696501800.

The spelling of 389448249 in words is "three hundred eighty-nine million, four hundred forty-eight thousand, two hundred forty-nine".