4000631952 has 20 divisors (see below), whose sum is σ = 10334966000. Its totient is φ = 1333543968.

The previous prime is 4000631923. The next prime is 4000632007. The reversal of 4000631952 is 2591360004.

4000631952 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 3 ways as a sum of consecutive naturals, for example, 41673202 + ... + 41673297.

It is an arithmetic number, because the mean of its divisors is an integer number (516748300).

Almost surely, 2^4000631952 is an apocalyptic number.

It is an amenable number.

4000631952 is an abundant number, since it is smaller than the sum of its proper divisors (6334334048).

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

4000631952 is a wasteful number, since it uses less digits than its factorization.

4000631952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83346510 (or 83346504 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 4000631952 is about 63250.5490252851. The cubic root of 4000631952 is about 1587.4846443386.

Adding to 4000631952 its reverse (2591360004), we get a palindrome (6591991956).

The spelling of 4000631952 in words is "four billion, six hundred thirty-one thousand, nine hundred fifty-two".