344112021 has 36 divisors (see below), whose sum is σ = 575134560. Its totient is φ = 197564400.

The previous prime is 344112001. The next prime is 344112023. The reversal of 344112021 is 120211443.

It is not a de Polignac number, because 344112021 - 2¹⁴ = 344095637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 344111985 and 344112003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344112023) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12376 + ... + 29006.

It is an arithmetic number, because the mean of its divisors is an integer number (15975960).

Almost surely, 2^344112021 is an apocalyptic number.

It is an amenable number.

344112021 is a deficient number, since it is larger than the sum of its proper divisors (231022539).

344112021 is a wasteful number, since it uses less digits than its factorization.

344112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16678 (or 16664 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 344112021 is about 18550.2566289526. The cubic root of 344112021 is about 700.7556608297.

Adding to 344112021 its reverse (120211443), we get a palindrome (464323464).

The spelling of 344112021 in words is "three hundred forty-four million, one hundred twelve thousand, twenty-one".