2172248 has 16 divisors (see below), whose sum is σ = 4386480. Its totient is φ = 1002528.

The previous prime is 2172241. The next prime is 2172253. The reversal of 2172248 is 8422712.

It is a super-2 number, since 2×2172248² = 9437322747008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a d-powerful number, because it can be written as 2⁹ + 1 + 7³ + 2¹³ + 2²¹ + 4⁸ + 8³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10340 + ... + 10547.

It is an arithmetic number, because the mean of its divisors is an integer number (274155).

2^2172248 is an apocalyptic number.

It is an amenable number.

2172248 is an abundant number, since it is smaller than the sum of its proper divisors (2214232).

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

2172248 is a wasteful number, since it uses less digits than its factorization.

2172248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20906 (or 20902 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 2172248 is about 1473.8548096743. The cubic root of 2172248 is about 129.5099498922.

The spelling of 2172248 in words is "two million, one hundred seventy-two thousand, two hundred forty-eight".