2172144336 has 40 divisors (see below), whose sum is σ = 5618937984. Its totient is φ = 723072000.

The previous prime is 2172144329. The next prime is 2172144361. The reversal of 2172144336 is 6334412712.

It is a super-2 number, since 2×2172144336² = 9436422032833761792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2172144297 and 2172144306.

It is a congruent number.

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, 5920 + ... + 66176.

Almost surely, 2^2172144336 is an apocalyptic number.

It is an amenable number.

2172144336 is an abundant number, since it is smaller than the sum of its proper divisors (3446793648).

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

2172144336 is a wasteful number, since it uses less digits than its factorization.

2172144336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61019 (or 61013 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 2172144336 is about 46606.2692778557. The cubic root of 2172144336 is about 1295.0788970183.

The spelling of 2172144336 in words is "two billion, one hundred seventy-two million, one hundred forty-four thousand, three hundred thirty-six".