344244021 has 16 divisors (see below), whose sum is σ = 502916160. Its totient is φ = 207717120.

The previous prime is 344243989. The next prime is 344244037. The reversal of 344244021 is 120442443.

It is a happy number.

It is not a de Polignac number, because 344244021 - 2⁵ = 344243989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 344243982 and 344244000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344244091) 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, 15220 + ... + 30333.

It is an arithmetic number, because the mean of its divisors is an integer number (31432260).

Almost surely, 2^344244021 is an apocalyptic number.

It is an amenable number.

344244021 is a deficient number, since it is larger than the sum of its proper divisors (158672139).

344244021 is a wasteful number, since it uses less digits than its factorization.

344244021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45796.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 344244021 is about 18553.8141900796. The cubic root of 344244021 is about 700.8452517347.

Adding to 344244021 its reverse (120442443), we get a palindrome (464686464).

The spelling of 344244021 in words is "three hundred forty-four million, two hundred forty-four thousand, twenty-one".