340743 has 8 divisors (see below), whose sum is σ = 489328. Its totient is φ = 209664.

The previous prime is 340723. The next prime is 340757. The reversal of 340743 is 347043.

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

It is not a de Polignac number, because 340743 - 2¹⁶ = 275207 is a prime.

It is a super-2 number, since 2×340743² = 232211584098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4330 + ... + 4407.

It is an arithmetic number, because the mean of its divisors is an integer number (61166).

2³⁴⁰⁷⁴³ is an apocalyptic number.

340743 is a deficient number, since it is larger than the sum of its proper divisors (148585).

340743 is a wasteful number, since it uses less digits than its factorization.

340743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8753.

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

The square root of 340743 is about 583.7319590360. The cubic root of 340743 is about 69.8461245808.

Adding to 340743 its reverse (347043), we get a palindrome (687786).

The spelling of 340743 in words is "three hundred forty thousand, seven hundred forty-three", and thus it is an iban number.