2213542236 has 12 divisors (see below), whose sum is σ = 5164931912. Its totient is φ = 737847408.

The previous prime is 2213542207. The next prime is 2213542249. The reversal of 2213542236 is 6322453122.

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

It is a congruent number.

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, 92230915 + ... + 92230938.

Almost surely, 2^2213542236 is an apocalyptic number.

It is an amenable number.

2213542236 is an abundant number, since it is smaller than the sum of its proper divisors (2951389676).

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

2213542236 is a wasteful number, since it uses less digits than its factorization.

2213542236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184461860 (or 184461858 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 2213542236 is about 47048.2968448381. The cubic root of 2213542236 is about 1303.2546135579.

Adding to 2213542236 its reverse (6322453122), we get a palindrome (8535995358).

The spelling of 2213542236 in words is "two billion, two hundred thirteen million, five hundred forty-two thousand, two hundred thirty-six".