343058728 has 8 divisors (see below), whose sum is σ = 643235130. Its totient is φ = 171529360.

The previous prime is 343058641. The next prime is 343058747. The reversal of 343058728 is 827850343.

It can be written as a sum of positive squares in only one way, i.e., 245799684 + 97259044 = 15678^2 + 9862^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21441163 + ... + 21441178.

Almost surely, 2^343058728 is an apocalyptic number.

It is an amenable number.

343058728 is a deficient number, since it is larger than the sum of its proper divisors (300176402).

343058728 is a wasteful number, since it uses less digits than its factorization.

343058728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42882347 (or 42882343 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 343058728 is about 18521.8446165602. The cubic root of 343058728 is about 700.0399487405.

The spelling of 343058728 in words is "three hundred forty-three million, fifty-eight thousand, seven hundred twenty-eight".