744340 has 12 divisors (see below), whose sum is σ = 1563156. Its totient is φ = 297728.

The previous prime is 744313. The next prime is 744353. The reversal of 744340 is 43447.

It can be written as a sum of positive squares in 2 ways, for example, as 298116 + 446224 = 546^2 + 668^2 .

It is a congruent number.

It is an unprimeable number.

744340 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18589 + ... + 18628.

It is an arithmetic number, because the mean of its divisors is an integer number (130263).

2⁷⁴⁴³⁴⁰ is an apocalyptic number.

It is an amenable number.

744340 is an abundant number, since it is smaller than the sum of its proper divisors (818816).

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

744340 is a wasteful number, since it uses less digits than its factorization.

744340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37226 (or 37224 counting only the distinct ones).

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

The square root of 744340 is about 862.7514126329. The cubic root of 744340 is about 90.6268988901.

Adding to 744340 its reverse (43447), we get a palindrome (787787).

The spelling of 744340 in words is "seven hundred forty-four thousand, three hundred forty", and thus it is an iban number.