2225144440 has 32 divisors (see below), whose sum is σ = 5021034480. Its totient is φ = 887487232.

The previous prime is 2225144423. The next prime is 2225144477. The reversal of 2225144440 is 444415222.

It is a junction number, because it is equal to n+sod(n) for n = 2225144399 and 2225144408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66277 + ... + 94036.

Almost surely, 2^2225144440 is an apocalyptic number.

2225144440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2225144440 is an abundant number, since it is smaller than the sum of its proper divisors (2795890040).

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

2225144440 is a wasteful number, since it uses less digits than its factorization.

2225144440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160671 (or 160667 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 2225144440 is about 47171.4366963738. The cubic root of 2225144440 is about 1305.5276346352.

Adding to 2225144440 its reverse (444415222), we get a palindrome (2669559662).

The spelling of 2225144440 in words is "two billion, two hundred twenty-five million, one hundred forty-four thousand, four hundred forty".