389584490 has 8 divisors (see below), whose sum is σ = 701252100. Its totient is φ = 155833792.

The previous prime is 389584477. The next prime is 389584499. The reversal of 389584490 is 94485983.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 366071689 + 23512801 = 19133^2 + 4849^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (389584499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19479215 + ... + 19479234.

Almost surely, 2^389584490 is an apocalyptic number.

389584490 is a deficient number, since it is larger than the sum of its proper divisors (311667610).

389584490 is a wasteful number, since it uses less digits than its factorization.

389584490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38958456.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 389584490 is about 19737.8947712262. The cubic root of 389584490 is about 730.3547971951.

The spelling of 389584490 in words is "three hundred eighty-nine million, five hundred eighty-four thousand, four hundred ninety".