100440223324 has 72 divisors (see below), whose sum is σ = 211381083648. Its totient is φ = 41594525280.

The previous prime is 100440223211. The next prime is 100440223339. The reversal of 100440223324 is 423322044001.

It is a happy number.

It is a super-2 number, since 2×100440223324² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4137807 + ... + 4162009.

It is an arithmetic number, because the mean of its divisors is an integer number (2935848384).

Almost surely, 2^100440223324 is an apocalyptic number.

100440223324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100440223324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105690541824).

100440223324 is an abundant number, since it is smaller than the sum of its proper divisors (110940860324).

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

100440223324 is a wasteful number, since it uses less digits than its factorization.

100440223324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24935 (or 24926 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 100440223324 its reverse (423322044001), we get a palindrome (523762267325).

The spelling of 100440223324 in words is "one hundred billion, four hundred forty million, two hundred twenty-three thousand, three hundred twenty-four".