389318545 has 16 divisors (see below), whose sum is σ = 582461568. Its totient is φ = 242691840.

The previous prime is 389318543. The next prime is 389318593. The reversal of 389318545 is 545813983.

It is not a de Polignac number, because 389318545 - 2¹ = 389318543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389318495 and 389318504.

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 in 15 ways as a sum of consecutive naturals, for example, 505224 + ... + 505993.

It is an arithmetic number, because the mean of its divisors is an integer number (36403848).

Almost surely, 2^389318545 is an apocalyptic number.

389318545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

389318545 is a deficient number, since it is larger than the sum of its proper divisors (193143023).

389318545 is a wasteful number, since it uses less digits than its factorization.

389318545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011240.

The product of its digits is 518400, while the sum is 46.

The square root of 389318545 is about 19731.1567070965. The cubic root of 389318545 is about 730.1885701631.

The spelling of 389318545 in words is "three hundred eighty-nine million, three hundred eighteen thousand, five hundred forty-five".