353340321 has 32 divisors (see below), whose sum is σ = 521856000. Its totient is φ = 211756608.

The previous prime is 353340301. The next prime is 353340341. The reversal of 353340321 is 123043353.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (353340301) and next prime (353340341).

It is not a de Polignac number, because 353340321 - 2⁹ = 353339809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 353340291 and 353340300.

It is not an unprimeable number, because it can be changed into a prime (353340301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95716 + ... + 99338.

It is an arithmetic number, because the mean of its divisors is an integer number (16308000).

Almost surely, 2^353340321 is an apocalyptic number.

It is an amenable number.

353340321 is a deficient number, since it is larger than the sum of its proper divisors (168515679).

353340321 is a wasteful number, since it uses less digits than its factorization.

353340321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 353340321 is about 18797.3487758247. The cubic root of 353340321 is about 706.9647062466.

Adding to 353340321 its reverse (123043353), we get a palindrome (476383674).

The spelling of 353340321 in words is "three hundred fifty-three million, three hundred forty thousand, three hundred twenty-one".