2272224 has 24 divisors (see below), whose sum is σ = 5964840. Its totient is φ = 757376.

The previous prime is 2272223. The next prime is 2272241. The reversal of 2272224 is 4222722.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2272224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272223) 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, 11739 + ... + 11930.

It is an arithmetic number, because the mean of its divisors is an integer number (248535).

2^2272224 is an apocalyptic number.

2272224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2272224 is an abundant number, since it is smaller than the sum of its proper divisors (3692616).

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

2272224 is a wasteful number, since it uses less digits than its factorization.

2272224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23682 (or 23674 counting only the distinct ones).

The product of its digits is 896, while the sum is 21.

The square root of 2272224 is about 1507.3897969669. The cubic root of 2272224 is about 131.4670892596.

Adding to 2272224 its reverse (4222722), we get a palindrome (6494946).

The spelling of 2272224 in words is "two million, two hundred seventy-two thousand, two hundred twenty-four".