40044530500 has 192 divisors, whose sum is σ = 95926574016. Its totient is φ = 14515200000.

The previous prime is 40044530419. The next prime is 40044530501. The reversal of 40044530500 is 503544004.

It can be written as a sum of positive squares in 32 ways, for example, as 38729452804 + 1315077696 = 196798^2 + 36264^2 .

It is a super-3 number, since 3×40044530500³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (40044530501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 118826332 + ... + 118826668.

It is an arithmetic number, because the mean of its divisors is an integer number (499617573).

Almost surely, 2^40044530500 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 40044530500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47963287008).

40044530500 is an abundant number, since it is smaller than the sum of its proper divisors (55882043516).

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

40044530500 is a wasteful number, since it uses less digits than its factorization.

40044530500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The spelling of 40044530500 in words is "forty billion, forty-four million, five hundred thirty thousand, five hundred".