346344221 has 8 divisors (see below), whose sum is σ = 348691200. Its totient is φ = 344005200.

The previous prime is 346344211. The next prime is 346344227. The reversal of 346344221 is 122443643.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 346344221 - 2⁶ = 346344157 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 (346344227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103271 + ... + 106571.

It is an arithmetic number, because the mean of its divisors is an integer number (43586400).

Almost surely, 2^346344221 is an apocalyptic number.

It is an amenable number.

346344221 is a deficient number, since it is larger than the sum of its proper divisors (2346979).

346344221 is a wasteful number, since it uses less digits than its factorization.

346344221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979.

The product of its digits is 13824, while the sum is 29.

The square root of 346344221 is about 18610.3256553989. The cubic root of 346344221 is about 702.2676264403.

Adding to 346344221 its reverse (122443643), we get a palindrome (468787864).

The spelling of 346344221 in words is "three hundred forty-six million, three hundred forty-four thousand, two hundred twenty-one".