4006172732 has 12 divisors (see below), whose sum is σ = 7011501000. Its totient is φ = 2002886736.

The previous prime is 4006172719. The next prime is 4006172789. The reversal of 4006172732 is 2372716004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019 + ... + 89517.

It is an arithmetic number, because the mean of its divisors is an integer number (584291750).

Almost surely, 2^4006172732 is an apocalyptic number.

It is an amenable number.

4006172732 is a deficient number, since it is larger than the sum of its proper divisors (3005328268).

4006172732 is a wasteful number, since it uses less digits than its factorization.

4006172732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99820 (or 99818 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 4006172732 is about 63294.3341224157. The cubic root of 4006172732 is about 1588.2171824050.

Adding to 4006172732 its reverse (2372716004), we get a palindrome (6378888736).

The spelling of 4006172732 in words is "four billion, six million, one hundred seventy-two thousand, seven hundred thirty-two".