340530743 has 8 divisors (see below), whose sum is σ = 397120800. Its totient is φ = 291883200.

The previous prime is 340530739. The next prime is 340530763. The reversal of 340530743 is 347035043.

It is a happy number.

It is not a de Polignac number, because 340530743 - 2² = 340530739 is a prime.

It is a super-2 number, since 2×340530743² = 231922373856264098, 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 (340530703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496058 + ... + 496743.

It is an arithmetic number, because the mean of its divisors is an integer number (49640100).

Almost surely, 2^340530743 is an apocalyptic number.

340530743 is a deficient number, since it is larger than the sum of its proper divisors (56590057).

340530743 is an frugal number, since it uses more digits than its factorization.

340530743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992822 (or 992808 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 29.

The square root of 340530743 is about 18453.4750927840. The cubic root of 340530743 is about 698.3161862542.

Adding to 340530743 its reverse (347035043), we get a palindrome (687565786).

The spelling of 340530743 in words is "three hundred forty million, five hundred thirty thousand, seven hundred forty-three".