740343 has 4 divisors (see below), whose sum is σ = 987128. Its totient is φ = 493560.

The previous prime is 740329. The next prime is 740351. The reversal of 740343 is 343047.

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

It is not a de Polignac number, because 740343 - 2⁶ = 740279 is a prime.

It is a D-number.

It is a Duffinian number.

740343 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740303) 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, 123388 + ... + 123393.

It is an arithmetic number, because the mean of its divisors is an integer number (246782).

2⁷⁴⁰³⁴³ is an apocalyptic number.

740343 is a deficient number, since it is larger than the sum of its proper divisors (246785).

740343 is a wasteful number, since it uses less digits than its factorization.

740343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246784.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 740343 is about 860.4318683080. The cubic root of 740343 is about 90.4643898033.

The spelling of 740343 in words is "seven hundred forty thousand, three hundred forty-three", and thus it is an iban number.