230440013 has 8 divisors (see below), whose sum is σ = 245576448. Its totient is φ = 215730064.

The previous prime is 230440009. The next prime is 230440027. The reversal of 230440013 is 310044032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 230440013 - 2² = 230440009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230439973 and 230440000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230440073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105506 + ... + 107667.

It is an arithmetic number, because the mean of its divisors is an integer number (30697056).

Almost surely, 2^230440013 is an apocalyptic number.

230440013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

230440013 is a deficient number, since it is larger than the sum of its proper divisors (15136435).

230440013 is a wasteful number, since it uses less digits than its factorization.

230440013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213243.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 230440013 is about 15180.2507555047. The cubic root of 230440013 is about 613.0830326793.

Adding to 230440013 its reverse (310044032), we get a palindrome (540484045).

The spelling of 230440013 in words is "two hundred thirty million, four hundred forty thousand, thirteen".