2225188 has 18 divisors (see below), whose sum is σ = 4530246. Its totient is φ = 953568.

The previous prime is 2225183. The next prime is 2225203. The reversal of 2225188 is 8815222.

It can be written as a sum of positive squares in only one way, i.e., 1695204 + 529984 = 1302^2 + 728^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (2225183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5481 + ... + 5872.

2^2225188 is an apocalyptic number.

2225188 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2225188 is an abundant number, since it is smaller than the sum of its proper divisors (2305058).

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

2225188 is a wasteful number, since it uses less digits than its factorization.

2225188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11371 (or 11362 counting only the distinct ones).

The product of its digits is 2560, while the sum is 28.

The square root of 2225188 is about 1491.7064054297. The cubic root of 2225188 is about 130.5536153695.

The spelling of 2225188 in words is "two million, two hundred twenty-five thousand, one hundred eighty-eight".