2212637646 has 16 divisors (see below), whose sum is σ = 4434079104. Its totient is φ = 736078584.

The previous prime is 2212637641. The next prime is 2212637701. The reversal of 2212637646 is 6467362122.

2212637646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212637641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363556 + ... + 369591.

It is an arithmetic number, because the mean of its divisors is an integer number (277129944).

Almost surely, 2^2212637646 is an apocalyptic number.

2212637646 is an abundant number, since it is smaller than the sum of its proper divisors (2221441458).

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

2212637646 is a wasteful number, since it uses less digits than its factorization.

2212637646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733655.

The product of its digits is 145152, while the sum is 39.

The square root of 2212637646 is about 47038.6824432828. The cubic root of 2212637646 is about 1303.0770592741.

Adding to 2212637646 its reverse (6467362122), we get a palindrome (8679999768).

The spelling of 2212637646 in words is "two billion, two hundred twelve million, six hundred thirty-seven thousand, six hundred forty-six".