2213512740 has 36 divisors (see below), whose sum is σ = 6714322524. Its totient is φ = 590270016.

The previous prime is 2213512739. The next prime is 2213512751. The reversal of 2213512740 is 472153122.

It can be written as a sum of positive squares in 2 ways, for example, as 777405924 + 1436106816 = 27882^2 + 37896^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6148467 + ... + 6148826.

It is an arithmetic number, because the mean of its divisors is an integer number (186508959).

Almost surely, 2^2213512740 is an apocalyptic number.

2213512740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2213512740 is an abundant number, since it is smaller than the sum of its proper divisors (4500809784).

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

2213512740 is a wasteful number, since it uses less digits than its factorization.

2213512740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12297308 (or 12297303 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2213512740 is about 47047.9833786742. The cubic root of 2213512740 is about 1303.2488248018.

Adding to 2213512740 its reverse (472153122), we get a palindrome (2685665862).

The spelling of 2213512740 in words is "two billion, two hundred thirteen million, five hundred twelve thousand, seven hundred forty".