344205121 has 16 divisors (see below), whose sum is σ = 402787840. Its totient is φ = 291288960.

The previous prime is 344205109. The next prime is 344205139. The reversal of 344205121 is 121502443.

It is a cyclic number.

It is not a de Polignac number, because 344205121 - 2¹⁹ = 343680833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 344205092 and 344205101.

It is not an unprimeable number, because it can be changed into a prime (344205101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14820 + ... + 30133.

It is an arithmetic number, because the mean of its divisors is an integer number (25174240).

Almost surely, 2^344205121 is an apocalyptic number.

344205121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

344205121 is a deficient number, since it is larger than the sum of its proper divisors (58582719).

344205121 is a wasteful number, since it uses less digits than its factorization.

344205121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45016.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 344205121 is about 18552.7658584913. The cubic root of 344205121 is about 700.8188519470.

Adding to 344205121 its reverse (121502443), we get a palindrome (465707564).

The spelling of 344205121 in words is "three hundred forty-four million, two hundred five thousand, one hundred twenty-one".