389518449 has 32 divisors (see below), whose sum is σ = 555609600. Its totient is φ = 242040960.

The previous prime is 389518439. The next prime is 389518463. The reversal of 389518449 is 944815983.

It is not a de Polignac number, because 389518449 - 2⁷ = 389518321 is a prime.

It is a super-2 number, since 2×389518449² = 303449244222731202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (389518429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1671637 + ... + 1671869.

It is an arithmetic number, because the mean of its divisors is an integer number (17362800).

Almost surely, 2^389518449 is an apocalyptic number.

It is an amenable number.

389518449 is a deficient number, since it is larger than the sum of its proper divisors (166091151).

389518449 is a wasteful number, since it uses less digits than its factorization.

389518449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605.

The product of its digits is 1244160, while the sum is 51.

The square root of 389518449 is about 19736.2217508823. The cubic root of 389518449 is about 730.3135257995.

The spelling of 389518449 in words is "three hundred eighty-nine million, five hundred eighteen thousand, four hundred forty-nine".