2172264 has 16 divisors (see below), whose sum is σ = 5430720. Its totient is φ = 724080.

The previous prime is 2172257. The next prime is 2172283. The reversal of 2172264 is 4622712.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 90511 = 2172264 / (2 + 1 + 7 + 2 + 2 + 6 + 4).

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, 45232 + ... + 45279.

It is an arithmetic number, because the mean of its divisors is an integer number (339420).

2^2172264 is an apocalyptic number.

2172264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2172264 is an abundant number, since it is smaller than the sum of its proper divisors (3258456).

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

2172264 is a wasteful number, since it uses less digits than its factorization.

2172264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90520 (or 90516 counting only the distinct ones).

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

The square root of 2172264 is about 1473.8602376074. The cubic root of 2172264 is about 129.5102678660.

Adding to 2172264 its reverse (4622712), we get a palindrome (6794976).

The spelling of 2172264 in words is "two million, one hundred seventy-two thousand, two hundred sixty-four".