8013842405 has 8 divisors (see below), whose sum is σ = 9658606200. Its totient is φ = 6383077056.

The previous prime is 8013842377. The next prime is 8013842407. The reversal of 8013842405 is 5042483108.

8013842405 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 3457322401 + 4556520004 = 58799^2 + 67502^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8013842405 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8013842407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3498350 + ... + 3500639.

It is an arithmetic number, because the mean of its divisors is an integer number (1207325775).

Almost surely, 2^8013842405 is an apocalyptic number.

It is an amenable number.

8013842405 is a deficient number, since it is larger than the sum of its proper divisors (1644763795).

8013842405 is a wasteful number, since it uses less digits than its factorization.

8013842405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6999223.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 8013842405 is about 89520.0670520303. The cubic root of 8013842405 is about 2001.1528690688.

The spelling of 8013842405 in words is "eight billion, thirteen million, eight hundred forty-two thousand, four hundred five".