389021130 has 48 divisors (see below), whose sum is σ = 1048922784. Its totient is φ = 103738320.

The previous prime is 389021123. The next prime is 389021131. The reversal of 389021130 is 31120983.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 389021094 and 389021103.

It is not an unprimeable number, because it can be changed into a prime (389021131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77616 + ... + 82475.

It is an arithmetic number, because the mean of its divisors is an integer number (21852558).

Almost surely, 2^389021130 is an apocalyptic number.

389021130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

389021130 is an abundant number, since it is smaller than the sum of its proper divisors (659901654).

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

389021130 is a wasteful number, since it uses less digits than its factorization.

389021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160113 (or 160101 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 389021130 is about 19723.6185828057. The cubic root of 389021130 is about 730.0025833398.

The spelling of 389021130 in words is "three hundred eighty-nine million, twenty-one thousand, one hundred thirty".