389145826 has 8 divisors (see below), whose sum is σ = 583824384. Its totient is φ = 194537700.

The previous prime is 389145791. The next prime is 389145847. The reversal of 389145826 is 628541983.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450 + ... + 27901.

It is an arithmetic number, because the mean of its divisors is an integer number (72978048).

Almost surely, 2^389145826 is an apocalyptic number.

389145826 is a deficient number, since it is larger than the sum of its proper divisors (194678558).

389145826 is a wasteful number, since it uses less digits than its factorization.

389145826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35216.

The product of its digits is 414720, while the sum is 46.

The square root of 389145826 is about 19726.7794127678. The cubic root of 389145826 is about 730.0805728292.

The spelling of 389145826 in words is "three hundred eighty-nine million, one hundred forty-five thousand, eight hundred twenty-six".