389404525 has 12 divisors (see below), whose sum is σ = 508276000. Its totient is φ = 295127280.

The previous prime is 389404501. The next prime is 389404529. The reversal of 389404525 is 525404983.

It is not a de Polignac number, because 389404525 - 2⁵ = 389404493 is a prime.

It is a super-3 number, since 3×389404525³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389404529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409425 + ... + 410374.

Almost surely, 2^389404525 is an apocalyptic number.

It is an amenable number.

389404525 is a deficient number, since it is larger than the sum of its proper divisors (118871475).

389404525 is a wasteful number, since it uses less digits than its factorization.

389404525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819828 (or 819823 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 389404525 is about 19733.3353744368. The cubic root of 389404525 is about 730.2423196294.

The spelling of 389404525 in words is "three hundred eighty-nine million, four hundred four thousand, five hundred twenty-five".