343400648 has 8 divisors (see below), whose sum is σ = 643876230. Its totient is φ = 171700320.

The previous prime is 343400627. The next prime is 343400657. The reversal of 343400648 is 846004343.

It can be written as a sum of positive squares in only one way, i.e., 266277124 + 77123524 = 16318^2 + 8782^2 .

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

It is a zygodrome in base 7.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21462533 + ... + 21462548.

Almost surely, 2^343400648 is an apocalyptic number.

It is an amenable number.

343400648 is a deficient number, since it is larger than the sum of its proper divisors (300475582).

343400648 is a wasteful number, since it uses less digits than its factorization.

343400648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42925087 (or 42925083 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 343400648 is about 18531.0724999931. The cubic root of 343400648 is about 700.2724436096.

The spelling of 343400648 in words is "three hundred forty-three million, four hundred thousand, six hundred forty-eight".