389500080 has 40 divisors (see below), whose sum is σ = 1207450992. Its totient is φ = 103866624.

The previous prime is 389500061. The next prime is 389500081. The reversal of 389500080 is 80005983.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (389500081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811219 + ... + 811698.

Almost surely, 2^389500080 is an apocalyptic number.

389500080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

389500080 is an abundant number, since it is smaller than the sum of its proper divisors (817950912).

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

389500080 is a wasteful number, since it uses less digits than its factorization.

389500080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622933 (or 1622927 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 389500080 is about 19735.7563827688. The cubic root of 389500080 is about 730.3020455217.

The spelling of 389500080 in words is "three hundred eighty-nine million, five hundred thousand, eighty".