343318642 has 4 divisors (see below), whose sum is σ = 514977966. Its totient is φ = 171659320.

The previous prime is 343318639. The next prime is 343318649. The reversal of 343318642 is 246813343.

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

It can be written as a sum of positive squares in only one way, i.e., 263770081 + 79548561 = 16241^2 + 8919^2 .

It is a junction number, because it is equal to n+sod(n) for n = 343318598 and 343318607.

It is not an unprimeable number, because it can be changed into a prime (343318649) 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 as a sum of consecutive naturals, namely, 85829659 + ... + 85829662.

Almost surely, 2^343318642 is an apocalyptic number.

343318642 is a deficient number, since it is larger than the sum of its proper divisors (171659324).

343318642 is a wasteful number, since it uses less digits than its factorization.

343318642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171659323.

The product of its digits is 41472, while the sum is 34.

The square root of 343318642 is about 18528.8597058750. The cubic root of 343318642 is about 700.2166961766.

The spelling of 343318642 in words is "three hundred forty-three million, three hundred eighteen thousand, six hundred forty-two".