220730353 has 4 divisors (see below), whose sum is σ = 232347760. Its totient is φ = 209112948.

The previous prime is 220730303. The next prime is 220730381. The reversal of 220730353 is 353037022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220730353 - 2²¹ = 218633201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220730303) 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, 5808675 + ... + 5808712.

It is an arithmetic number, because the mean of its divisors is an integer number (58086940).

Almost surely, 2^220730353 is an apocalyptic number.

It is an amenable number.

220730353 is a deficient number, since it is larger than the sum of its proper divisors (11617407).

220730353 is a wasteful number, since it uses less digits than its factorization.

220730353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11617406.

The product of its (nonzero) digits is 3780, while the sum is 25.

The square root of 220730353 is about 14856.9967691994. The cubic root of 220730353 is about 604.3483665325.

Adding to 220730353 its reverse (353037022), we get a palindrome (573767375).

The spelling of 220730353 in words is "two hundred twenty million, seven hundred thirty thousand, three hundred fifty-three".