389265788 has 6 divisors (see below), whose sum is σ = 681215136. Its totient is φ = 194632892.

The previous prime is 389265781. The next prime is 389265803. The reversal of 389265788 is 887562983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389265781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48658220 + ... + 48658227.

It is an arithmetic number, because the mean of its divisors is an integer number (113535856).

Almost surely, 2^389265788 is an apocalyptic number.

It is an amenable number.

389265788 is a deficient number, since it is larger than the sum of its proper divisors (291949348).

389265788 is a wasteful number, since it uses less digits than its factorization.

389265788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97316451 (or 97316449 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 56.

The square root of 389265788 is about 19729.8197660293. The cubic root of 389265788 is about 730.1555857778.

The spelling of 389265788 in words is "three hundred eighty-nine million, two hundred sixty-five thousand, seven hundred eighty-eight".