344545 has 4 divisors (see below), whose sum is σ = 413460. Its totient is φ = 275632.

The previous prime is 344543. The next prime is 344567. The reversal of 344545 is 545443.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 190096 + 154449 = 436^2 + 393^2 .

It is a cyclic number.

It is not a de Polignac number, because 344545 - 2¹ = 344543 is a prime.

It is a super-2 number, since 2×344545² = 237422514050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (344543) 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, 34450 + ... + 34459.

It is an arithmetic number, because the mean of its divisors is an integer number (103365).

2³⁴⁴⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

344545 is a deficient number, since it is larger than the sum of its proper divisors (68915).

344545 is an equidigital number, since it uses as much as digits as its factorization.

344545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68914.

The product of its digits is 4800, while the sum is 25.

The square root of 344545 is about 586.9795567139. The cubic root of 344545 is about 70.1049446283.

Adding to 344545 its reverse (545443), we get a palindrome (889988).

The spelling of 344545 in words is "three hundred forty-four thousand, five hundred forty-five".