389020812 has 48 divisors (see below), whose sum is σ = 939724800. Its totient is φ = 125157312.

The previous prime is 389020811. The next prime is 389020813. The reversal of 389020812 is 218020983.

It is an interprime number because it is at equal distance from previous prime (389020811) and next prime (389020813).

It is not an unprimeable number, because it can be changed into a prime (389020811) 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, 52939 + ... + 59837.

It is an arithmetic number, because the mean of its divisors is an integer number (19577600).

Almost surely, 2^389020812 is an apocalyptic number.

It is an amenable number.

389020812 is an abundant number, since it is smaller than the sum of its proper divisors (550703988).

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

389020812 is a wasteful number, since it uses less digits than its factorization.

389020812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7070 (or 7068 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 389020812 is about 19723.6105214030. The cubic root of 389020812 is about 730.0023844296.

The spelling of 389020812 in words is "three hundred eighty-nine million, twenty thousand, eight hundred twelve".