2211440452 has 24 divisors (see below), whose sum is σ = 4269370392. Its totient is φ = 995769600.

The previous prime is 2211440447. The next prime is 2211440453. The reversal of 2211440452 is 2540441122.

It can be written as a sum of positive squares in 4 ways, for example, as 70157376 + 2141283076 = 8376^2 + 46274^2 .

It is not an unprimeable number, because it can be changed into a prime (2211440453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516499 + ... + 520762.

It is an arithmetic number, because the mean of its divisors is an integer number (177890433).

Almost surely, 2^2211440452 is an apocalyptic number.

It is an amenable number.

2211440452 is a deficient number, since it is larger than the sum of its proper divisors (2057929940).

2211440452 is a wasteful number, since it uses less digits than its factorization.

2211440452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037319 (or 1037317 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 2211440452 is about 47025.9550886529. The cubic root of 2211440452 is about 1302.8419978174.

Adding to 2211440452 its reverse (2540441122), we get a palindrome (4751881574).

The spelling of 2211440452 in words is "two billion, two hundred eleven million, four hundred forty thousand, four hundred fifty-two".