389184242 has 12 divisors (see below), whose sum is σ = 610263150. Its totient is φ = 186131088.

The previous prime is 389184233. The next prime is 389184251. The reversal of 389184242 is 242481983.

It is an interprime number because it is at equal distance from previous prime (389184233) and next prime (389184251).

It can be written as a sum of positive squares in only one way, i.e., 336025561 + 53158681 = 18331^2 + 7291^2 .

It is a super-2 number, since 2×389184242² = 302928748442229128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 389184242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182867 + ... + 184982.

Almost surely, 2^389184242 is an apocalyptic number.

389184242 is a deficient number, since it is larger than the sum of its proper divisors (221078908).

389184242 is a wasteful number, since it uses less digits than its factorization.

389184242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367897 (or 367874 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 389184242 is about 19727.7530905068. The cubic root of 389184242 is about 730.1045962591.

The spelling of 389184242 in words is "three hundred eighty-nine million, one hundred eighty-four thousand, two hundred forty-two".