3406940978 has 8 divisors (see below), whose sum is σ = 5840470272. Its totient is φ = 1460117556.

The previous prime is 3406940969. The next prime is 3406941001. The reversal of 3406940978 is 8790496043.

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

It is a Curzon number.

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, 121676450 + ... + 121676477.

It is an arithmetic number, because the mean of its divisors is an integer number (730058784).

Almost surely, 2^3406940978 is an apocalyptic number.

3406940978 is a deficient number, since it is larger than the sum of its proper divisors (2433529294).

3406940978 is a wasteful number, since it uses less digits than its factorization.

3406940978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243352936.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 3406940978 is about 58369.0069985776. The cubic root of 3406940978 is about 1504.7171468742.

The spelling of 3406940978 in words is "three billion, four hundred six million, nine hundred forty thousand, nine hundred seventy-eight".