343403642 has 16 divisors (see below), whose sum is σ = 526956192. Its totient is φ = 167778000.

The previous prime is 343403617. The next prime is 343403651. The reversal of 343403642 is 246304343.

It is a super-2 number, since 2×343403642² = 235852122677728328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20153 + ... + 33059.

It is an arithmetic number, because the mean of its divisors is an integer number (32934762).

Almost surely, 2^343403642 is an apocalyptic number.

343403642 is a deficient number, since it is larger than the sum of its proper divisors (183552550).

343403642 is a wasteful number, since it uses less digits than its factorization.

343403642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13213.

The product of its (nonzero) digits is 20736, while the sum is 29.

The square root of 343403642 is about 18531.1532830528. The cubic root of 343403642 is about 700.2744787539.

Adding to 343403642 its reverse (246304343), we get a palindrome (589707985).

The spelling of 343403642 in words is "three hundred forty-three million, four hundred three thousand, six hundred forty-two".