343421516 has 12 divisors (see below), whose sum is σ = 607184088. Its totient is φ = 169940352.

The previous prime is 343421501. The next prime is 343421557. The reversal of 343421516 is 615124343.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442166 + ... + 442941.

It is an arithmetic number, because the mean of its divisors is an integer number (50598674).

Almost surely, 2^343421516 is an apocalyptic number.

It is an amenable number.

343421516 is a deficient number, since it is larger than the sum of its proper divisors (263762572).

343421516 is a wasteful number, since it uses less digits than its factorization.

343421516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885208 (or 885206 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 343421516 is about 18531.6355457364. The cubic root of 343421516 is about 700.2866281969.

Adding to 343421516 its reverse (615124343), we get a palindrome (958545859).

The spelling of 343421516 in words is "three hundred forty-three million, four hundred twenty-one thousand, five hundred sixteen".