223020434 has 32 divisors (see below), whose sum is σ = 412608000. Its totient is φ = 88039872.

The previous prime is 223020407. The next prime is 223020451. The reversal of 223020434 is 434020322.

It is a super-2 number, since 2×223020434² = 99476227963096712, which contains 22 as substring.

It is a Curzon number.

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, 110567 + ... + 112565.

It is an arithmetic number, because the mean of its divisors is an integer number (12894000).

Almost surely, 2^223020434 is an apocalyptic number.

223020434 is a deficient number, since it is larger than the sum of its proper divisors (189587566).

223020434 is a wasteful number, since it uses less digits than its factorization.

223020434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 223020434 is about 14933.8686883205. The cubic root of 223020434 is about 606.4312212125.

Adding to 223020434 its reverse (434020322), we get a palindrome (657040756).

The spelling of 223020434 in words is "two hundred twenty-three million, twenty thousand, four hundred thirty-four".