389366546 has 4 divisors (see below), whose sum is σ = 584049822. Its totient is φ = 194683272.

The previous prime is 389366543. The next prime is 389366561. The reversal of 389366546 is 645663983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 645663983 = 1051 ⋅614333.

It can be written as a sum of positive squares in only one way, i.e., 388287025 + 1079521 = 19705^2 + 1039^2 .

It is a junction number, because it is equal to n+sod(n) for n = 389366494 and 389366503.

It is not an unprimeable number, because it can be changed into a prime (389366543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97341635 + ... + 97341638.

Almost surely, 2^389366546 is an apocalyptic number.

389366546 is a deficient number, since it is larger than the sum of its proper divisors (194683276).

389366546 is a wasteful number, since it uses less digits than its factorization.

389366546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194683275.

The product of its digits is 2799360, while the sum is 50.

The square root of 389366546 is about 19732.3730453283. The cubic root of 389366546 is about 730.2185784443.

The spelling of 389366546 in words is "three hundred eighty-nine million, three hundred sixty-six thousand, five hundred forty-six".