389493504 has 108 divisors (see below), whose sum is σ = 1139301072. Its totient is φ = 127948800.

The previous prime is 389493499. The next prime is 389493529. The reversal of 389493504 is 405394983.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 389493504.

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 11 ways as a sum of consecutive naturals, for example, 162394 + ... + 164774.

It is an arithmetic number, because the mean of its divisors is an integer number (10549084).

Almost surely, 2^389493504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389493504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569650536).

389493504 is an abundant number, since it is smaller than the sum of its proper divisors (749807568).

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

389493504 is a wasteful number, since it uses less digits than its factorization.

389493504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474 (or 2457 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 389493504 is about 19735.5897809009. The cubic root of 389493504 is about 730.2979355582.

The spelling of 389493504 in words is "three hundred eighty-nine million, four hundred ninety-three thousand, five hundred four".