389048109 has 16 divisors (see below), whose sum is σ = 538581504. Its totient is φ = 249537600.

The previous prime is 389048071. The next prime is 389048113. The reversal of 389048109 is 901840983.

It is not a de Polignac number, because 389048109 - 2⁸ = 389047853 is a prime.

It is a super-2 number, since 2×389048109² = 302716862232951762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389048129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3999 + ... + 28179.

It is an arithmetic number, because the mean of its divisors is an integer number (33661344).

Almost surely, 2^389048109 is an apocalyptic number.

It is an amenable number.

389048109 is a deficient number, since it is larger than the sum of its proper divisors (149533395).

389048109 is a wasteful number, since it uses less digits than its factorization.

389048109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24388.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 389048109 is about 19724.3024971734. The cubic root of 389048109 is about 730.0194584167.

The spelling of 389048109 in words is "three hundred eighty-nine million, forty-eight thousand, one hundred nine".