389241899 has 4 divisors (see below), whose sum is σ = 389609136. Its totient is φ = 388874664.

The previous prime is 389241893. The next prime is 389241929. The reversal of 389241899 is 998142983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998142983 = 23 ⋅43397521.

It is a cyclic number.

It is not a de Polignac number, because 389241899 - 2²⁴ = 372464683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389241899.

It is not an unprimeable number, because it can be changed into a prime (389241893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182024 + ... + 184149.

It is an arithmetic number, because the mean of its divisors is an integer number (97402284).

Almost surely, 2^389241899 is an apocalyptic number.

389241899 is a deficient number, since it is larger than the sum of its proper divisors (367237).

389241899 is a wasteful number, since it uses less digits than its factorization.

389241899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367236.

The product of its digits is 1119744, while the sum is 53.

The square root of 389241899 is about 19729.2143533391. The cubic root of 389241899 is about 730.1406490738.

The spelling of 389241899 in words is "three hundred eighty-nine million, two hundred forty-one thousand, eight hundred ninety-nine".