434221143 has 4 divisors (see below), whose sum is σ = 578961528. Its totient is φ = 289480760.

The previous prime is 434221141. The next prime is 434221189. The reversal of 434221143 is 341122434.

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

It is a cyclic number.

It is not a de Polignac number, because 434221143 - 2¹ = 434221141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434221141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72370188 + ... + 72370193.

It is an arithmetic number, because the mean of its divisors is an integer number (144740382).

Almost surely, 2^434221143 is an apocalyptic number.

434221143 is a deficient number, since it is larger than the sum of its proper divisors (144740385).

434221143 is a wasteful number, since it uses less digits than its factorization.

434221143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144740384.

The product of its digits is 2304, while the sum is 24.

The square root of 434221143 is about 20837.9735819009. The cubic root of 434221143 is about 757.2460013901.

Adding to 434221143 its reverse (341122434), we get a palindrome (775343577).

The spelling of 434221143 in words is "four hundred thirty-four million, two hundred twenty-one thousand, one hundred forty-three".