223420434 has 16 divisors (see below), whose sum is σ = 449841600. Its totient is φ = 73973360.

The previous prime is 223420363. The next prime is 223420447. The reversal of 223420434 is 434024322.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124062 + ... + 125849.

It is an arithmetic number, because the mean of its divisors is an integer number (28115100).

Almost surely, 2^223420434 is an apocalyptic number.

223420434 is an abundant number, since it is smaller than the sum of its proper divisors (226421166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223420434 is a wasteful number, since it uses less digits than its factorization.

223420434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250065.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 223420434 is about 14947.2550657303. The cubic root of 223420434 is about 606.7935611199.

Adding to 223420434 its reverse (434024322), we get a palindrome (657444756).

The spelling of 223420434 in words is "two hundred twenty-three million, four hundred twenty thousand, four hundred thirty-four".