389219478 has 32 divisors (see below), whose sum is σ = 832108032. Its totient is φ = 121070400.

The previous prime is 389219461. The next prime is 389219497. The reversal of 389219478 is 874912983.

It is a self number, because there is not a number n which added to its sum of digits gives 389219478.

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 15 ways as a sum of consecutive naturals, for example, 28738 + ... + 40053.

It is an arithmetic number, because the mean of its divisors is an integer number (26003376).

Almost surely, 2^389219478 is an apocalyptic number.

389219478 is an abundant number, since it is smaller than the sum of its proper divisors (442888554).

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

389219478 is a wasteful number, since it uses less digits than its factorization.

389219478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68860.

The product of its digits is 870912, while the sum is 51.

The square root of 389219478 is about 19728.6461268887. The cubic root of 389219478 is about 730.1266296873.

The spelling of 389219478 in words is "three hundred eighty-nine million, two hundred nineteen thousand, four hundred seventy-eight".