344253421 has 4 divisors (see below), whose sum is σ = 344322112. Its totient is φ = 344184732.

The previous prime is 344253361. The next prime is 344253431. The reversal of 344253421 is 124352443.

It is a happy number.

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: 124352443 = 317 ⋅392279.

It is a cyclic number.

It is not a de Polignac number, because 344253421 - 2¹⁷ = 344122349 is a prime.

It is a super-5 number, since 5×344253421⁵ (a number of 44 digits) contains 55555 as substring.

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 344253421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344253431) 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, 26181 + ... + 37066.

It is an arithmetic number, because the mean of its divisors is an integer number (86080528).

Almost surely, 2^344253421 is an apocalyptic number.

It is an amenable number.

344253421 is a deficient number, since it is larger than the sum of its proper divisors (68691).

344253421 is an equidigital number, since it uses as much as digits as its factorization.

344253421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68690.

The product of its digits is 11520, while the sum is 28.

The square root of 344253421 is about 18554.0675055364. The cubic root of 344253421 is about 700.8516308195.

The spelling of 344253421 in words is "three hundred forty-four million, two hundred fifty-three thousand, four hundred twenty-one".