2272164 has 12 divisors (see below), whose sum is σ = 5301744. Its totient is φ = 757384.

The previous prime is 2272141. The next prime is 2272177. The reversal of 2272164 is 4612722.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94662 + ... + 94685.

It is an arithmetic number, because the mean of its divisors is an integer number (441812).

2^2272164 is an apocalyptic number.

It is an amenable number.

2272164 is an abundant number, since it is smaller than the sum of its proper divisors (3029580).

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

2272164 is a wasteful number, since it uses less digits than its factorization.

2272164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189354 (or 189352 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 2272164 is about 1507.3698948831. The cubic root of 2272164 is about 131.4659320827.

Adding to 2272164 its reverse (4612722), we get a palindrome (6884886).

The spelling of 2272164 in words is "two million, two hundred seventy-two thousand, one hundred sixty-four".