344862221 has 24 divisors (see below), whose sum is σ = 403341120. Its totient is φ = 293617280.

The previous prime is 344862211. The next prime is 344862223. The reversal of 344862221 is 122268443.

It is a de Polignac number, because none of the positive numbers 2^k-344862221 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 (344862223) 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 23 ways as a sum of consecutive naturals, for example, 738230 + ... + 738696.

It is an arithmetic number, because the mean of its divisors is an integer number (16805880).

Almost surely, 2^344862221 is an apocalyptic number.

It is an amenable number.

344862221 is a deficient number, since it is larger than the sum of its proper divisors (58478899).

344862221 is a wasteful number, since it uses less digits than its factorization.

344862221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 854 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 344862221 is about 18570.4663646339. The cubic root of 344862221 is about 701.2645312893.

The spelling of 344862221 in words is "three hundred forty-four million, eight hundred sixty-two thousand, two hundred twenty-one".