2172411620 has 12 divisors (see below), whose sum is σ = 4562064444. Its totient is φ = 868964640.

The previous prime is 2172411601. The next prime is 2172411649. The reversal of 2172411620 is 261142712.

2172411620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1552202404 + 620209216 = 39398^2 + 24904^2 .

It is a super-2 number, since 2×2172411620² = 9438744493422048800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2172411620.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54310271 + ... + 54310310.

It is an arithmetic number, because the mean of its divisors is an integer number (380172037).

Almost surely, 2^2172411620 is an apocalyptic number.

2172411620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2172411620 is an abundant number, since it is smaller than the sum of its proper divisors (2389652824).

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

2172411620 is a wasteful number, since it uses less digits than its factorization.

2172411620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108620590 (or 108620588 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2172411620 is about 46609.1366579558. The cubic root of 2172411620 is about 1295.1320149849.

The spelling of 2172411620 in words is "two billion, one hundred seventy-two million, four hundred eleven thousand, six hundred twenty".