344745 has 24 divisors (see below), whose sum is σ = 614016. Its totient is φ = 178848.

The previous prime is 344719. The next prime is 344749. The reversal of 344745 is 547443.

It is not a de Polignac number, because 344745 - 2⁶ = 344681 is a prime.

It is a d-powerful number, because it can be written as 3³ + 4⁵ + 7⁴ + 4⁵ + 4⁹ + 5⁷ .

344745 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (344749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2034 + ... + 2196.

It is an arithmetic number, because the mean of its divisors is an integer number (25584).

2³⁴⁴⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

344745 is a deficient number, since it is larger than the sum of its proper divisors (269271).

344745 is a wasteful number, since it uses less digits than its factorization.

344745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 218 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 344745 is about 587.1498956825. The cubic root of 344745 is about 70.1185067434.

It can be divided in two parts, 344 and 745, that added together give a square (1089 = 33²).

The spelling of 344745 in words is "three hundred forty-four thousand, seven hundred forty-five".