344740 has 24 divisors (see below), whose sum is σ = 790272. Its totient is φ = 125280.

The previous prime is 344719. The next prime is 344749. The reversal of 344740 is 47443.

It is a Harshad number since it is a multiple of its sum of digits (22).

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

344740 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564 + ... + 1003.

It is an arithmetic number, because the mean of its divisors is an integer number (32928).

2³⁴⁴⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

344740 is an abundant number, since it is smaller than the sum of its proper divisors (445532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

344740 is a wasteful number, since it uses less digits than its factorization.

344740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587 (or 1585 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 344740 is about 587.1456378106. The cubic root of 344740 is about 70.1181677544.

Subtracting from 344740 its product of nonzero digits (1344), we obtain a square (343396 = 586²).

It can be divided in two parts, 34 and 4740, that added together give a palindrome (4774).

The spelling of 344740 in words is "three hundred forty-four thousand, seven hundred forty", and thus it is an iban number.