4005642134 has 8 divisors (see below), whose sum is σ = 6470652720. Its totient is φ = 1848757896.

The previous prime is 4005642107. The next prime is 4005642169. The reversal of 4005642134 is 4312465004.

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

It is a junction number, because it is equal to n+sod(n) for n = 4005642097 and 4005642106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77031554 + ... + 77031605.

It is an arithmetic number, because the mean of its divisors is an integer number (808831590).

Almost surely, 2^4005642134 is an apocalyptic number.

4005642134 is a deficient number, since it is larger than the sum of its proper divisors (2465010586).

4005642134 is a wasteful number, since it uses less digits than its factorization.

4005642134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154063174.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 4005642134 is about 63290.1424710041. The cubic root of 4005642134 is about 1588.1470621079.

The spelling of 4005642134 in words is "four billion, five million, six hundred forty-two thousand, one hundred thirty-four".