230019439 has 4 divisors (see below), whose sum is σ = 247713256. Its totient is φ = 212325624.

The previous prime is 230019431. The next prime is 230019463. The reversal of 230019439 is 934910032.

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

It is a cyclic number.

It is not a de Polignac number, because 230019439 - 2³ = 230019431 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 230019439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230019431) 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, 8846889 + ... + 8846914.

It is an arithmetic number, because the mean of its divisors is an integer number (61928314).

Almost surely, 2^230019439 is an apocalyptic number.

230019439 is a deficient number, since it is larger than the sum of its proper divisors (17693817).

230019439 is a wasteful number, since it uses less digits than its factorization.

230019439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17693816.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 230019439 is about 15166.3917594133. The cubic root of 230019439 is about 612.7098280957.

It can be divided in two parts, 2 and 30019439, that added together give a square (30019441 = 5479²).

The spelling of 230019439 in words is "two hundred thirty million, nineteen thousand, four hundred thirty-nine".