342343521 has 48 divisors (see below), whose sum is σ = 555172800. Its totient is φ = 201833856.

The previous prime is 342343493. The next prime is 342343553. The reversal of 342343521 is 125343243.

It is not a de Polignac number, because 342343521 - 2⁶ = 342343457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (342341521) 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 47 ways as a sum of consecutive naturals, for example, 552750 + ... + 553368.

It is an arithmetic number, because the mean of its divisors is an integer number (11566100).

Almost surely, 2^342343521 is an apocalyptic number.

It is an amenable number.

342343521 is a deficient number, since it is larger than the sum of its proper divisors (212829279).

342343521 is a wasteful number, since it uses less digits than its factorization.

342343521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 827 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 342343521 is about 18502.5274219497. The cubic root of 342343521 is about 699.5531304321.

Adding to 342343521 its reverse (125343243), we get a palindrome (467686764).

The spelling of 342343521 in words is "three hundred forty-two million, three hundred forty-three thousand, five hundred twenty-one".