2171488 has 48 divisors (see below), whose sum is σ = 4838400. Its totient is φ = 950400.

The previous prime is 2171441. The next prime is 2171497. The reversal of 2171488 is 8841712.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 10813 + ... + 11011.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^2171488 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 2171488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419200).

2171488 is an abundant number, since it is smaller than the sum of its proper divisors (2666912).

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

2171488 is a wasteful number, since it uses less digits than its factorization.

2171488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 243 counting only the distinct ones).

The product of its digits is 3584, while the sum is 31.

The square root of 2171488 is about 1473.5969598231. The cubic root of 2171488 is about 129.4948443359.

It can be divided in two parts, 217148 and 8, that added together give a square (217156 = 466²).

The spelling of 2171488 in words is "two million, one hundred seventy-one thousand, four hundred eighty-eight".