343243906 has 8 divisors (see below), whose sum is σ = 545152140. Its totient is φ = 161526528.

The previous prime is 343243871. The next prime is 343243921. The reversal of 343243906 is 609342343.

It can be written as a sum of positive squares in 2 ways, for example, as 325477681 + 17766225 = 18041^2 + 4215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×343243906² = 235632758012273672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 10095409 = 343243906 / (3 + 4 + 3 + 2 + 4 + 3 + 9 + 0 + 6).

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, 5047671 + ... + 5047738.

Almost surely, 2^343243906 is an apocalyptic number.

343243906 is a deficient number, since it is larger than the sum of its proper divisors (201908234).

343243906 is a wasteful number, since it uses less digits than its factorization.

343243906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10095428.

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 343243906 is about 18526.8428503078. The cubic root of 343243906 is about 700.1658831356.

The spelling of 343243906 in words is "three hundred forty-three million, two hundred forty-three thousand, nine hundred six".