11424021444 has 72 divisors (see below), whose sum is σ = 31593770208. Its totient is φ = 3451806720.

The previous prime is 11424021443. The next prime is 11424021463. The reversal of 11424021444 is 44412042411.

It is a happy number.

11424021444 is a `hidden beast` number, since 114 + 2 + 402 + 144 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (11424021443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95844 + ... + 178980.

It is an arithmetic number, because the mean of its divisors is an integer number (438802364).

Almost surely, 2^11424021444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11424021444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15796885104).

11424021444 is an abundant number, since it is smaller than the sum of its proper divisors (20169748764).

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

11424021444 is a wasteful number, since it uses less digits than its factorization.

11424021444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83505 (or 83500 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 11424021444 its reverse (44412042411), we get a palindrome (55836063855).

The spelling of 11424021444 in words is "eleven billion, four hundred twenty-four million, twenty-one thousand, four hundred forty-four".