2171364 has 48 divisors (see below), whose sum is σ = 5644800. Its totient is φ = 645120.

The previous prime is 2171347. The next prime is 2171383. The reversal of 2171364 is 4631712.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4612 + ... + 5060.

It is an arithmetic number, because the mean of its divisors is an integer number (117600).

2^2171364 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 2171364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2822400).

2171364 is an abundant number, since it is smaller than the sum of its proper divisors (3473436).

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

2171364 is a wasteful number, since it uses less digits than its factorization.

2171364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 498 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 2171364 is about 1473.5548853029. The cubic root of 2171364 is about 129.4923794107.

The spelling of 2171364 in words is "two million, one hundred seventy-one thousand, three hundred sixty-four".