2443221531436 has 24 divisors (see below), whose sum is σ = 4891173462560. Its totient is φ = 1046081284992.

The previous prime is 2443221531379. The next prime is 2443221531463. The reversal of 2443221531436 is 6341351223442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42206271 + ... + 42264118.

Almost surely, 2^{2443221531436} is an apocalyptic number.

It is an amenable number.

2443221531436 is an abundant number, since it is smaller than the sum of its proper divisors (2447951931124).

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

2443221531436 is a wasteful number, since it uses less digits than its factorization.

2443221531436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84471433 (or 84471431 counting only the distinct ones).

The product of its digits is 414720, while the sum is 40.

Adding to 2443221531436 its reverse (6341351223442), we get a palindrome (8784572754878).

The spelling of 2443221531436 in words is "two trillion, four hundred forty-three billion, two hundred twenty-one million, five hundred thirty-one thousand, four hundred thirty-six".