2171204 has 12 divisors (see below), whose sum is σ = 4342464. Its totient is φ = 930504.

The previous prime is 2171203. The next prime is 2171219. The reversal of 2171204 is 4021712.

2171204 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2171203) 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, 38744 + ... + 38799.

It is an arithmetic number, because the mean of its divisors is an integer number (361872).

2^2171204 is an apocalyptic number.

It is an amenable number.

2171204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2171204 is a wasteful number, since it uses less digits than its factorization.

2171204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77554 (or 77552 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 2171204 is about 1473.5005938241. The cubic root of 2171204 is about 129.4891987235.

Adding to 2171204 its reverse (4021712), we get a palindrome (6192916).

The spelling of 2171204 in words is "two million, one hundred seventy-one thousand, two hundred four".