343440434 has 8 divisors (see below), whose sum is σ = 516067740. Its totient is φ = 171417856.

The previous prime is 343440373. The next prime is 343440437. The reversal of 343440434 is 434044343.

It can be written as a sum of positive squares in 2 ways, for example, as 342805225 + 635209 = 18515^2 + 797^2 .

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

It is a super-2 number, since 2×343440434² = 235902663412216712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 343440397 and 343440406.

It is not an unprimeable number, because it can be changed into a prime (343440437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149759 + ... + 152034.

Almost surely, 2^343440434 is an apocalyptic number.

343440434 is a deficient number, since it is larger than the sum of its proper divisors (172627306).

343440434 is a wasteful number, since it uses less digits than its factorization.

343440434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302364.

The product of its (nonzero) digits is 27648, while the sum is 29.

The square root of 343440434 is about 18532.1459631636. The cubic root of 343440434 is about 700.2994868158.

Adding to 343440434 its reverse (434044343), we get a palindrome (777484777).

The spelling of 343440434 in words is "three hundred forty-three million, four hundred forty thousand, four hundred thirty-four".