344021111 has 16 divisors (see below), whose sum is σ = 404174400. Its totient is φ = 292682880.

The previous prime is 344021107. The next prime is 344021123. The reversal of 344021111 is 111120443.

It is a happy number.

It is not a de Polignac number, because 344021111 - 2² = 344021107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 344021111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344021311) 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 15 ways as a sum of consecutive naturals, for example, 43331 + ... + 50651.

It is an arithmetic number, because the mean of its divisors is an integer number (25260900).

Almost surely, 2^344021111 is an apocalyptic number.

344021111 is a deficient number, since it is larger than the sum of its proper divisors (60153289).

344021111 is an equidigital number, since it uses as much as digits as its factorization.

344021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7479 (or 7465 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 344021111 is about 18547.8060966789. The cubic root of 344021111 is about 700.6939451633.

Adding to 344021111 its reverse (111120443), we get a palindrome (455141554).

The spelling of 344021111 in words is "three hundred forty-four million, twenty-one thousand, one hundred eleven".