2171246960 has 40 divisors (see below), whose sum is σ = 5051893920. Its totient is φ = 867854592.

The previous prime is 2171246951. The next prime is 2171246971. The reversal of 2171246960 is 696421712.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2171246960² = 9428626722618483200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106901 + ... + 125579.

It is an arithmetic number, because the mean of its divisors is an integer number (126297348).

Almost surely, 2^2171246960 is an apocalyptic number.

2171246960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2171246960 is an abundant number, since it is smaller than the sum of its proper divisors (2880646960).

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

2171246960 is a wasteful number, since it uses less digits than its factorization.

2171246960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20145 (or 20139 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 2171246960 is about 46596.6410806616. The cubic root of 2171246960 is about 1294.9005275333.

The spelling of 2171246960 in words is "two billion, one hundred seventy-one million, two hundred forty-six thousand, nine hundred sixty".