230403805 has 24 divisors (see below), whose sum is σ = 300945960. Its totient is φ = 169205760.

The previous prime is 230403799. The next prime is 230403827. The reversal of 230403805 is 508304032.

It can be written as a sum of positive squares in 12 ways, for example, as 24710841 + 205692964 = 4971^2 + 14342^2 .

It is a de Polignac number, because none of the positive numbers 2^k-230403805 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230403805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57301 + ... + 61189.

It is an arithmetic number, because the mean of its divisors is an integer number (12539415).

Almost surely, 2^230403805 is an apocalyptic number.

It is an amenable number.

230403805 is a deficient number, since it is larger than the sum of its proper divisors (70542155).

230403805 is a wasteful number, since it uses less digits than its factorization.

230403805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969 (or 3952 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 230403805 is about 15179.0581064834. The cubic root of 230403805 is about 613.0509206733.

Adding to 230403805 its reverse (508304032), we get a palindrome (738707837).

The spelling of 230403805 in words is "two hundred thirty million, four hundred three thousand, eight hundred five".