2175880620 has 24 divisors (see below), whose sum is σ = 6092465904. Its totient is φ = 580234816.

The previous prime is 2175880591. The next prime is 2175880621. The reversal of 2175880620 is 260885712.

It is not an unprimeable number, because it can be changed into a prime (2175880621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18132279 + ... + 18132398.

It is an arithmetic number, because the mean of its divisors is an integer number (253852746).

Almost surely, 2^2175880620 is an apocalyptic number.

2175880620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2175880620 is an abundant number, since it is smaller than the sum of its proper divisors (3916585284).

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

2175880620 is a wasteful number, since it uses less digits than its factorization.

2175880620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36264689 (or 36264687 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 2175880620 is about 46646.3355473932. The cubic root of 2175880620 is about 1295.8210224761.

It can be divided in two parts, 21758 and 80620, that added together give a triangular number (102378 = T₄₅₂).

The spelling of 2175880620 in words is "two billion, one hundred seventy-five million, eight hundred eighty thousand, six hundred twenty".