340004678 has 12 divisors (see below), whose sum is σ = 552256668. Its totient is φ = 156925080.

The previous prime is 340004663. The next prime is 340004689. The reversal of 340004678 is 876400043.

It is a happy number.

It is a Curzon number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 502628 + ... + 503303.

It is an arithmetic number, because the mean of its divisors is an integer number (46021389).

Almost surely, 2^340004678 is an apocalyptic number.

340004678 is a deficient number, since it is larger than the sum of its proper divisors (212251990).

340004678 is a wasteful number, since it uses less digits than its factorization.

340004678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005959 (or 1005946 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 340004678 is about 18439.2157642347. The cubic root of 340004678 is about 697.9564056812.

The spelling of 340004678 in words is "three hundred forty million, four thousand, six hundred seventy-eight".