220430743 has 4 divisors (see below), whose sum is σ = 237386968. Its totient is φ = 203474520.

The previous prime is 220430741. The next prime is 220430773. The reversal of 220430743 is 347034022.

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 220430743 - 2¹ = 220430741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220430741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8478093 + ... + 8478118.

It is an arithmetic number, because the mean of its divisors is an integer number (59346742).

Almost surely, 2^220430743 is an apocalyptic number.

220430743 is a deficient number, since it is larger than the sum of its proper divisors (16956225).

220430743 is a wasteful number, since it uses less digits than its factorization.

220430743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16956224.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 220430743 is about 14846.9102172809. The cubic root of 220430743 is about 604.0748037918.

Adding to 220430743 its reverse (347034022), we get a palindrome (567464765).

The spelling of 220430743 in words is "two hundred twenty million, four hundred thirty thousand, seven hundred forty-three".