344055421 has 4 divisors (see below), whose sum is σ = 348901344. Its totient is φ = 339209500.

The previous prime is 344055419. The next prime is 344055431. The reversal of 344055421 is 124550443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124550443 = 1549 ⋅80407.

It is a cyclic number.

It is not a de Polignac number, because 344055421 - 2¹ = 344055419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 344055421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344055431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2422855 + ... + 2422996.

It is an arithmetic number, because the mean of its divisors is an integer number (87225336).

Almost surely, 2^344055421 is an apocalyptic number.

It is an amenable number.

344055421 is a deficient number, since it is larger than the sum of its proper divisors (4845923).

344055421 is an equidigital number, since it uses as much as digits as its factorization.

344055421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845922.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 344055421 is about 18548.7309808515. The cubic root of 344055421 is about 700.7172383172.

The spelling of 344055421 in words is "three hundred forty-four million, fifty-five thousand, four hundred twenty-one".