40844440032 has 48 divisors (see below), whose sum is σ = 116963626752. Its totient is φ = 12377102720.

The previous prime is 40844440031. The next prime is 40844440067. The reversal of 40844440032 is 23004444804.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×40844440032² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 40844439975 and 40844440002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40844440031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19338168 + ... + 19340279.

It is an arithmetic number, because the mean of its divisors is an integer number (2436742224).

Almost surely, 2^40844440032 is an apocalyptic number.

It is an amenable number.

40844440032 is an abundant number, since it is smaller than the sum of its proper divisors (76119186720).

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

40844440032 is a wasteful number, since it uses less digits than its factorization.

40844440032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38678471 (or 38678463 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 40844440032 its reverse (23004444804), we get a palindrome (63848884836).

The spelling of 40844440032 in words is "forty billion, eight hundred forty-four million, four hundred forty thousand, thirty-two".