389462109 has 4 divisors (see below), whose sum is σ = 519282816. Its totient is φ = 259641404.

The previous prime is 389462041. The next prime is 389462147. The reversal of 389462109 is 901264983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 389462109 - 2¹⁶ = 389396573 is a prime.

It is a super-3 number, since 3×389462109³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389462149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64910349 + ... + 64910354.

It is an arithmetic number, because the mean of its divisors is an integer number (129820704).

Almost surely, 2^389462109 is an apocalyptic number.

It is an amenable number.

389462109 is a deficient number, since it is larger than the sum of its proper divisors (129820707).

389462109 is a wasteful number, since it uses less digits than its factorization.

389462109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129820706.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 389462109 is about 19734.7943744038. The cubic root of 389462109 is about 730.2783132200.

The spelling of 389462109 in words is "three hundred eighty-nine million, four hundred sixty-two thousand, one hundred nine".