4078685405 has 8 divisors (see below), whose sum is σ = 4919783352. Its totient is φ = 3246041088.

The previous prime is 4078685389. The next prime is 4078685411. The reversal of 4078685405 is 5045868704.

4078685405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 59505796 + 4019179609 = 7714^2 + 63397^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4078685405 - 2⁴ = 4078685389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4078685405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2112344 + ... + 2114273.

It is an arithmetic number, because the mean of its divisors is an integer number (614972919).

Almost surely, 2^4078685405 is an apocalyptic number.

It is an amenable number.

4078685405 is a deficient number, since it is larger than the sum of its proper divisors (841097947).

4078685405 is a wasteful number, since it uses less digits than its factorization.

4078685405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226815.

The product of its (nonzero) digits is 1075200, while the sum is 47.

The square root of 4078685405 is about 63864.5864701244. The cubic root of 4078685405 is about 1597.7423112170.

The spelling of 4078685405 in words is "four billion, seventy-eight million, six hundred eighty-five thousand, four hundred five".