389055830 has 16 divisors (see below), whose sum is σ = 716587344. Its totient is φ = 152003040.

The previous prime is 389055827. The next prime is 389055841. The reversal of 389055830 is 38550983.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451961 + ... + 452820.

It is an arithmetic number, because the mean of its divisors is an integer number (44786709).

Almost surely, 2^389055830 is an apocalyptic number.

389055830 is a deficient number, since it is larger than the sum of its proper divisors (327531514).

389055830 is a wasteful number, since it uses less digits than its factorization.

389055830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904831.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 389055830 is about 19724.4982192197. The cubic root of 389055830 is about 730.0242876763.

The spelling of 389055830 in words is "three hundred eighty-nine million, fifty-five thousand, eight hundred thirty".