740443 has 8 divisors (see below), whose sum is σ = 818496. Its totient is φ = 664200.

The previous prime is 740429. The next prime is 740461. The reversal of 740443 is 344047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 740443 - 2⁹ = 739931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 508 + ... + 1318.

It is an arithmetic number, because the mean of its divisors is an integer number (102312).

2⁷⁴⁰⁴⁴³ is an apocalyptic number.

740443 is a deficient number, since it is larger than the sum of its proper divisors (78053).

740443 is a wasteful number, since it uses less digits than its factorization.

740443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

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

The square root of 740443 is about 860.4899766993. The cubic root of 740443 is about 90.4684627045.

It can be divided in two parts, 74044 and 3, that added together give a palindrome (74047).

The spelling of 740443 in words is "seven hundred forty thousand, four hundred forty-three", and thus it is an iban number.