2225444240 has 20 divisors (see below), whose sum is σ = 5174158044. Its totient is φ = 890177664.

The previous prime is 2225444237. The next prime is 2225444251. The reversal of 2225444240 is 424445222.

It can be written as a sum of positive squares in 2 ways, for example, as 490888336 + 1734555904 = 22156^2 + 41648^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 13908947 + ... + 13909106.

Almost surely, 2^2225444240 is an apocalyptic number.

2225444240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2225444240 is an abundant number, since it is smaller than the sum of its proper divisors (2948713804).

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

2225444240 is a wasteful number, since it uses less digits than its factorization.

2225444240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27818066 (or 27818060 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 2225444240 is about 47174.6143598440. The cubic root of 2225444240 is about 1305.5862644783.

Adding to 2225444240 its reverse (424445222), we get a palindrome (2649889462).

The spelling of 2225444240 in words is "two billion, two hundred twenty-five million, four hundred forty-four thousand, two hundred forty".