40444829880 has 384 divisors, whose sum is σ = 158997427200. Its totient is φ = 8030969856.

The previous prime is 40444829879. The next prime is 40444829927. The reversal of 40444829880 is 8892844404.

It is a Cunningham number, because it is equal to 201109²-1.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2404941 + ... + 2421699.

It is an arithmetic number, because the mean of its divisors is an integer number (414055800).

Almost surely, 2^40444829880 is an apocalyptic number.

40444829880 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 40444829880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79498713600).

40444829880 is an abundant number, since it is smaller than the sum of its proper divisors (118552597320).

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

40444829880 is a wasteful number, since it uses less digits than its factorization.

40444829880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16823 (or 16806 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 51.

The spelling of 40444829880 in words is "forty billion, four hundred forty-four million, eight hundred twenty-nine thousand, eight hundred eighty".