3995660172 has 48 divisors (see below), whose sum is σ = 10783487232. Its totient is φ = 1127860800.

The previous prime is 3995660171. The next prime is 3995660177. The reversal of 3995660172 is 2710665993.

It is not an unprimeable number, because it can be changed into a prime (3995660171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279579 + ... + 293522.

It is an arithmetic number, because the mean of its divisors is an integer number (224655984).

Almost surely, 2^3995660172 is an apocalyptic number.

It is an amenable number.

3995660172 is an abundant number, since it is smaller than the sum of its proper divisors (6787827060).

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

3995660172 is a wasteful number, since it uses less digits than its factorization.

3995660172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573198 (or 573196 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 48.

The square root of 3995660172 is about 63211.2345394393. The cubic root of 3995660172 is about 1586.8267569286.

It can be divided in two parts, 39956 and 60172, that added together give a triangular number (100128 = T₄₄₇).

The spelling of 3995660172 in words is "three billion, nine hundred ninety-five million, six hundred sixty thousand, one hundred seventy-two".