343240531 has 8 divisors (see below), whose sum is σ = 349067664. Its totient is φ = 337434240.

The previous prime is 343240519. The next prime is 343240589. The reversal of 343240531 is 135042343.

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 343240531 - 2¹³ = 343232339 is a prime.

It is a super-2 number, since 2×343240531² = 235628124242323922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343240496 and 343240505.

It is not an unprimeable number, because it can be changed into a prime (343240501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29991 + ... + 39823.

It is an arithmetic number, because the mean of its divisors is an integer number (43633458).

Almost surely, 2^343240531 is an apocalyptic number.

343240531 is a deficient number, since it is larger than the sum of its proper divisors (5827133).

343240531 is an equidigital number, since it uses as much as digits as its factorization.

343240531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10421.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 343240531 is about 18526.7517660274. The cubic root of 343240531 is about 700.1635882974.

Adding to 343240531 its reverse (135042343), we get a palindrome (478282874).

The spelling of 343240531 in words is "three hundred forty-three million, two hundred forty thousand, five hundred thirty-one".