4078870385 has 4 divisors (see below), whose sum is σ = 4894644468. Its totient is φ = 3263096304.

The previous prime is 4078870379. The next prime is 4078870399. The reversal of 4078870385 is 5830788704.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2744502544 + 1334367841 = 52388^2 + 36529^2 .

It is a cyclic number.

It is not a de Polignac number, because 4078870385 - 2⁶ = 4078870321 is a prime.

It is a Duffinian 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, 407887034 + ... + 407887043.

It is an arithmetic number, because the mean of its divisors is an integer number (1223661117).

Almost surely, 2^4078870385 is an apocalyptic number.

It is an amenable number.

4078870385 is a deficient number, since it is larger than the sum of its proper divisors (815774083).

4078870385 is an equidigital number, since it uses as much as digits as its factorization.

4078870385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815774082.

The product of its (nonzero) digits is 1505280, while the sum is 50.

The square root of 4078870385 is about 63866.0346741521. The cubic root of 4078870385 is about 1597.7664649067.

The spelling of 4078870385 in words is "four billion, seventy-eight million, eight hundred seventy thousand, three hundred eighty-five".