223430505 has 16 divisors (see below), whose sum is σ = 359308224. Its totient is φ = 118556480.

The previous prime is 223430497. The next prime is 223430513. The reversal of 223430505 is 505034322.

223430505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (223430497) and next prime (223430513).

It is not a de Polignac number, because 223430505 - 2³ = 223430497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34851 + ... + 40760.

It is an arithmetic number, because the mean of its divisors is an integer number (22456764).

Almost surely, 2^223430505 is an apocalyptic number.

It is an amenable number.

223430505 is a deficient number, since it is larger than the sum of its proper divisors (135877719).

223430505 is a wasteful number, since it uses less digits than its factorization.

223430505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75816.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 223430505 is about 14947.5919465311. The cubic root of 223430505 is about 606.8026783495.

Adding to 223430505 its reverse (505034322), we get a palindrome (728464827).

The spelling of 223430505 in words is "two hundred twenty-three million, four hundred thirty thousand, five hundred five".