389318542 has 4 divisors (see below), whose sum is σ = 583977816. Its totient is φ = 194659270.

The previous prime is 389318509. The next prime is 389318543. The reversal of 389318542 is 245813983.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389318543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97329634 + ... + 97329637.

It is an arithmetic number, because the mean of its divisors is an integer number (145994454).

Almost surely, 2^389318542 is an apocalyptic number.

389318542 is a deficient number, since it is larger than the sum of its proper divisors (194659274).

389318542 is a wasteful number, since it uses less digits than its factorization.

389318542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194659273.

The product of its digits is 207360, while the sum is 43.

The square root of 389318542 is about 19731.1566310746. The cubic root of 389318542 is about 730.1885682875.

The spelling of 389318542 in words is "three hundred eighty-nine million, three hundred eighteen thousand, five hundred forty-two".