389645048 has 24 divisors (see below), whose sum is σ = 791109000. Its totient is φ = 179835552.

The previous prime is 389645041. The next prime is 389645051. The reversal of 389645048 is 840546983.

It is a junction number, because it is equal to n+sod(n) for n = 389644993 and 389645011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389645041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142748 + ... + 145451.

It is an arithmetic number, because the mean of its divisors is an integer number (32962875).

Almost surely, 2^389645048 is an apocalyptic number.

It is an amenable number.

389645048 is an abundant number, since it is smaller than the sum of its proper divisors (401463952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389645048 is a wasteful number, since it uses less digits than its factorization.

389645048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288231 (or 288214 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 389645048 is about 19739.4287657977. The cubic root of 389645048 is about 730.3926379678.

The spelling of 389645048 in words is "three hundred eighty-nine million, six hundred forty-five thousand, forty-eight".