2172576 has 96 divisors (see below), whose sum is σ = 6749568. Its totient is φ = 599040.

The previous prime is 2172571. The next prime is 2172581. The reversal of 2172576 is 6752712.

It is an interprime number because it is at equal distance from previous prime (2172571) and next prime (2172581).

It is a tau number, because it is divible by the number of its divisors (96).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2172571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35586 + ... + 35646.

It is an arithmetic number, because the mean of its divisors is an integer number (70308).

2^2172576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2172576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3374784).

2172576 is an abundant number, since it is smaller than the sum of its proper divisors (4576992).

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

2172576 is a wasteful number, since it uses less digits than its factorization.

2172576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 126 counting only the distinct ones).

The product of its digits is 5880, while the sum is 30.

The square root of 2172576 is about 1473.9660783071. The cubic root of 2172576 is about 129.5164680438.

It can be divided in two parts, 2 and 172576, that added together give a triangular number (172578 = T₅₈₇).

The spelling of 2172576 in words is "two million, one hundred seventy-two thousand, five hundred seventy-six".