389485530 has 64 divisors (see below), whose sum is σ = 1187009280. Its totient is φ = 89024832.

The previous prime is 389485511. The next prime is 389485543. The reversal of 389485530 is 35584983.

It is a happy number.

389485530 is a `hidden beast` number, since 3 + 8 + 94 + 8 + 553 + 0 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101149 + ... + 104928.

It is an arithmetic number, because the mean of its divisors is an integer number (18547020).

Almost surely, 2^389485530 is an apocalyptic number.

389485530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

389485530 is an abundant number, since it is smaller than the sum of its proper divisors (797523750).

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

389485530 is a wasteful number, since it uses less digits than its factorization.

389485530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206100 (or 206094 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 389485530 is about 19735.3877590485. The cubic root of 389485530 is about 730.2929517905.

The spelling of 389485530 in words is "three hundred eighty-nine million, four hundred eighty-five thousand, five hundred thirty".