340455434 has 8 divisors (see below), whose sum is σ = 557108928. Its totient is φ = 154752460.

The previous prime is 340455391. The next prime is 340455443. The reversal of 340455434 is 434554043.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 340455434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7737602 + ... + 7737645.

It is an arithmetic number, because the mean of its divisors is an integer number (69638616).

Almost surely, 2^340455434 is an apocalyptic number.

340455434 is a deficient number, since it is larger than the sum of its proper divisors (216653494).

340455434 is a wasteful number, since it uses less digits than its factorization.

340455434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15475260.

The product of its (nonzero) digits is 57600, while the sum is 32.

The square root of 340455434 is about 18451.4344699809. The cubic root of 340455434 is about 698.2647044893.

The spelling of 340455434 in words is "three hundred forty million, four hundred fifty-five thousand, four hundred thirty-four".