389492344 has 32 divisors (see below), whose sum is σ = 738460800. Its totient is φ = 192580960.

The previous prime is 389492309. The next prime is 389492371. The reversal of 389492344 is 443294983.

It is a super-2 number, since 2×389492344² = 303408572069228672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 389492294 and 389492303.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 438669 + ... + 439555.

It is an arithmetic number, because the mean of its divisors is an integer number (23076900).

Almost surely, 2^389492344 is an apocalyptic number.

It is an amenable number.

389492344 is a deficient number, since it is larger than the sum of its proper divisors (348968456).

389492344 is a wasteful number, since it uses less digits than its factorization.

389492344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443 (or 1439 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 389492344 is about 19735.5603923476. The cubic root of 389492344 is about 730.2972105598.

The spelling of 389492344 in words is "three hundred eighty-nine million, four hundred ninety-two thousand, three hundred forty-four".