340425434 has 8 divisors (see below), whose sum is σ = 512085780. Its totient is φ = 169730176.

The previous prime is 340425427. The next prime is 340425443. The reversal of 340425434 is 434524043.

It can be written as a sum of positive squares in 2 ways, for example, as 327501409 + 12924025 = 18097^2 + 3595^2 .

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

It is a super-2 number, since 2×340425434² = 231778952228176712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340425397 and 340425406.

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, 240389 + ... + 241800.

Almost surely, 2^340425434 is an apocalyptic number.

340425434 is a deficient number, since it is larger than the sum of its proper divisors (171660346).

340425434 is a wasteful number, since it uses less digits than its factorization.

340425434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482544.

The product of its (nonzero) digits is 23040, while the sum is 29.

The square root of 340425434 is about 18450.6215071471. The cubic root of 340425434 is about 698.2441941627.

Adding to 340425434 its reverse (434524043), we get a palindrome (774949477).

The spelling of 340425434 in words is "three hundred forty million, four hundred twenty-five thousand, four hundred thirty-four".