349837221 has 8 divisors (see below), whose sum is σ = 466585344. Its totient is φ = 233156960.

The previous prime is 349837219. The next prime is 349837231. The reversal of 349837221 is 122738943.

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 349837221 - 2¹ = 349837219 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 349837221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349837211) 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, 3381 + ... + 26666.

It is an arithmetic number, because the mean of its divisors is an integer number (58323168).

Almost surely, 2^349837221 is an apocalyptic number.

It is an amenable number.

349837221 is a deficient number, since it is larger than the sum of its proper divisors (116748123).

349837221 is a wasteful number, since it uses less digits than its factorization.

349837221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33931.

The product of its digits is 72576, while the sum is 39.

The square root of 349837221 is about 18703.9359761522. The cubic root of 349837221 is about 704.6206036706.

The spelling of 349837221 in words is "three hundred forty-nine million, eight hundred thirty-seven thousand, two hundred twenty-one".