343420634 has 16 divisors (see below), whose sum is σ = 532441728. Its totient is φ = 166028352.

The previous prime is 343420631. The next prime is 343420657. The reversal of 343420634 is 436024343.

It is a junction number, because it is equal to n+sod(n) for n = 343420597 and 343420606.

It is not an unprimeable number, because it can be changed into a prime (343420631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14207 + ... + 29810.

It is an arithmetic number, because the mean of its divisors is an integer number (33277608).

Almost surely, 2^343420634 is an apocalyptic number.

343420634 is a deficient number, since it is larger than the sum of its proper divisors (189021094).

343420634 is a wasteful number, since it uses less digits than its factorization.

343420634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44149.

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

The square root of 343420634 is about 18531.6117485771. The cubic root of 343420634 is about 700.2860286874.

Adding to 343420634 its reverse (436024343), we get a palindrome (779444977).

The spelling of 343420634 in words is "three hundred forty-three million, four hundred twenty thousand, six hundred thirty-four".