221046434 has 16 divisors (see below), whose sum is σ = 380089536. Its totient is φ = 94446000.

The previous prime is 221046403. The next prime is 221046443. The reversal of 221046434 is 434640122.

221046434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 19217 + ... + 28484.

It is an arithmetic number, because the mean of its divisors is an integer number (23755596).

Almost surely, 2^221046434 is an apocalyptic number.

221046434 is a deficient number, since it is larger than the sum of its proper divisors (159043102).

221046434 is a wasteful number, since it uses less digits than its factorization.

221046434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48041.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 221046434 is about 14867.6304097190. The cubic root of 221046434 is about 604.6367001270.

Adding to 221046434 its reverse (434640122), we get a palindrome (655686556).

The spelling of 221046434 in words is "two hundred twenty-one million, forty-six thousand, four hundred thirty-four".