230400221 has 4 divisors (see below), whose sum is σ = 236627292. Its totient is φ = 224173152.

The previous prime is 230400193. The next prime is 230400253. The reversal of 230400221 is 122004032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 78765625 + 151634596 = 8875^2 + 12314^2 .

It is a cyclic number.

It is not a de Polignac number, because 230400221 - 2¹⁴ = 230383837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230400196 and 230400205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230406221) 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, 3113480 + ... + 3113553.

It is an arithmetic number, because the mean of its divisors is an integer number (59156823).

Almost surely, 2^230400221 is an apocalyptic number.

It is an amenable number.

230400221 is a deficient number, since it is larger than the sum of its proper divisors (6227071).

230400221 is an equidigital number, since it uses as much as digits as its factorization.

230400221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6227070.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 230400221 is about 15178.9400486332. The cubic root of 230400221 is about 613.0477419268.

Adding to 230400221 its reverse (122004032), we get a palindrome (352404253).

The spelling of 230400221 in words is "two hundred thirty million, four hundred thousand, two hundred twenty-one".