4206640042 has 16 divisors (see below), whose sum is σ = 6886620000. Its totient is φ = 1911268240.

The previous prime is 4206640019. The next prime is 4206640049. The reversal of 4206640042 is 2400466024.

It is not an unprimeable number, because it can be changed into a prime (4206640049) 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, 10584 + ... + 92332.

It is an arithmetic number, because the mean of its divisors is an integer number (430413750).

Almost surely, 2^4206640042 is an apocalyptic number.

4206640042 is a deficient number, since it is larger than the sum of its proper divisors (2679979958).

4206640042 is a wasteful number, since it uses less digits than its factorization.

4206640042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84101.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 4206640042 is about 64858.6157884980. The cubic root of 4206640042 is about 1614.2784550077.

The spelling of 4206640042 in words is "four billion, two hundred six million, six hundred forty thousand, forty-two".