353220239 has 4 divisors (see below), whose sum is σ = 353702856. Its totient is φ = 352737624.

The previous prime is 353220229. The next prime is 353220281. The reversal of 353220239 is 932022353.

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 353220239 - 2²⁰ = 352171663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353220229) 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, 240209 + ... + 241674.

It is an arithmetic number, because the mean of its divisors is an integer number (88425714).

Almost surely, 2^353220239 is an apocalyptic number.

353220239 is a deficient number, since it is larger than the sum of its proper divisors (482617).

353220239 is an equidigital number, since it uses as much as digits as its factorization.

353220239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482616.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 353220239 is about 18794.1543837439. The cubic root of 353220239 is about 706.8846103262.

The spelling of 353220239 in words is "three hundred fifty-three million, two hundred twenty thousand, two hundred thirty-nine".