344448521 has 4 divisors (see below), whose sum is σ = 347496852. Its totient is φ = 341400192.

The previous prime is 344448499. The next prime is 344448539. The reversal of 344448521 is 125844443.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125844443 = 9049 ⋅13907.

It can be written as a sum of positive squares in 2 ways, for example, as 89567296 + 254881225 = 9464^2 + 15965^2 .

It is a cyclic number.

It is not a de Polignac number, because 344448521 - 2¹⁰ = 344447497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344448581) 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, 1523996 + ... + 1524221.

It is an arithmetic number, because the mean of its divisors is an integer number (86874213).

Almost surely, 2^344448521 is an apocalyptic number.

It is an amenable number.

344448521 is a deficient number, since it is larger than the sum of its proper divisors (3048331).

344448521 is a wasteful number, since it uses less digits than its factorization.

344448521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048330.

The product of its digits is 61440, while the sum is 35.

The square root of 344448521 is about 18559.3243680906. The cubic root of 344448521 is about 700.9840045516.

The spelling of 344448521 in words is "three hundred forty-four million, four hundred forty-eight thousand, five hundred twenty-one".