389391148 has 6 divisors (see below), whose sum is σ = 681434516. Its totient is φ = 194695572.

The previous prime is 389391133. The next prime is 389391169. The reversal of 389391148 is 841193983.

It is a happy number.

It is a super-2 number, since 2×389391148² = 303250932281515808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 389391098 and 389391107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48673890 + ... + 48673897.

Almost surely, 2^389391148 is an apocalyptic number.

It is an amenable number.

389391148 is a deficient number, since it is larger than the sum of its proper divisors (292043368).

389391148 is a wasteful number, since it uses less digits than its factorization.

389391148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97347791 (or 97347789 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 389391148 is about 19732.9964273042. The cubic root of 389391148 is about 730.2339576624.

The spelling of 389391148 in words is "three hundred eighty-nine million, three hundred ninety-one thousand, one hundred forty-eight".