11444322420 has 72 divisors (see below), whose sum is σ = 35190025416. Its totient is φ = 3010010112.

The previous prime is 11444322413. The next prime is 11444322431. The reversal of 11444322420 is 2422344411.

It can be written as a sum of positive squares in 4 ways, for example, as 566249616 + 10878072804 = 23796^2 + 104298^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422337 + ... + 448616.

It is an arithmetic number, because the mean of its divisors is an integer number (488750353).

Almost surely, 2^11444322420 is an apocalyptic number.

11444322420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11444322420 is an abundant number, since it is smaller than the sum of its proper divisors (23745702996).

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

11444322420 is a wasteful number, since it uses less digits than its factorization.

11444322420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871041 (or 871036 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 11444322420 its reverse (2422344411), we get a palindrome (13866666831).

The spelling of 11444322420 in words is "eleven billion, four hundred forty-four million, three hundred twenty-two thousand, four hundred twenty".