40444003120 has 80 divisors (see below), whose sum is σ = 95396742432. Its totient is φ = 15943219200.

The previous prime is 40444003099. The next prime is 40444003121. The reversal of 40444003120 is 2130044404.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 40444003091 and 40444003100.

It is not an unprimeable number, because it can be changed into a prime (40444003121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11100019 + ... + 11103661.

Almost surely, 2^40444003120 is an apocalyptic number.

40444003120 is a gapful number since it is divisible by the number (40) 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 40444003120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47698371216).

40444003120 is an abundant number, since it is smaller than the sum of its proper divisors (54952739312).

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

40444003120 is a wasteful number, since it uses less digits than its factorization.

40444003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630 (or 5624 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 40444003120 its reverse (2130044404), we get a palindrome (42574047524).

The spelling of 40444003120 in words is "forty billion, four hundred forty-four million, three thousand, one hundred twenty".