389616448 has 28 divisors (see below), whose sum is σ = 832619620. Its totient is φ = 179822592.

The previous prime is 389616439. The next prime is 389616449. The reversal of 389616448 is 844616983.

It can be written as a sum of positive squares in 2 ways, for example, as 121705024 + 267911424 = 11032^2 + 16368^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389616449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233313 + ... + 234976.

It is an arithmetic number, because the mean of its divisors is an integer number (29736415).

Almost surely, 2^389616448 is an apocalyptic number.

It is an amenable number.

389616448 is an abundant number, since it is smaller than the sum of its proper divisors (443003172).

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

389616448 is a wasteful number, since it uses less digits than its factorization.

389616448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468314 (or 468304 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The square root of 389616448 is about 19738.7043141134. The cubic root of 389616448 is about 730.3747672239.

The spelling of 389616448 in words is "three hundred eighty-nine million, six hundred sixteen thousand, four hundred forty-eight".