2211340452 has 12 divisors (see below), whose sum is σ = 5159794416. Its totient is φ = 737113480.

The previous prime is 2211340421. The next prime is 2211340457. The reversal of 2211340452 is 2540431122.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2211340457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92139174 + ... + 92139197.

It is an arithmetic number, because the mean of its divisors is an integer number (429982868).

Almost surely, 2^2211340452 is an apocalyptic number.

It is an amenable number.

2211340452 is an abundant number, since it is smaller than the sum of its proper divisors (2948453964).

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

2211340452 is a wasteful number, since it uses less digits than its factorization.

2211340452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184278378 (or 184278376 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2211340452 is about 47024.8918340064. The cubic root of 2211340452 is about 1302.8223596123.

Adding to 2211340452 its reverse (2540431122), we get a palindrome (4751771574).

The spelling of 2211340452 in words is "two billion, two hundred eleven million, three hundred forty thousand, four hundred fifty-two".