4001640042 has 16 divisors (see below), whose sum is σ = 8004026880. Its totient is φ = 1333755552.

The previous prime is 4001640029. The next prime is 4001640059. The reversal of 4001640042 is 2400461004.

4001640042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 58318 + ... + 106790.

It is an arithmetic number, because the mean of its divisors is an integer number (500251680).

Almost surely, 2^4001640042 is an apocalyptic number.

4001640042 is an abundant number, since it is smaller than the sum of its proper divisors (4002386838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4001640042 is a wasteful number, since it uses less digits than its factorization.

4001640042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62237.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4001640042 is about 63258.5175450706. The cubic root of 4001640042 is about 1587.6179726906.

The spelling of 4001640042 in words is "four billion, one million, six hundred forty thousand, forty-two".