40544512 has 36 divisors (see below), whose sum is σ = 81729340. Its totient is φ = 20072448.

The previous prime is 40544509. The next prime is 40544519. The reversal of 40544512 is 21544504.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35236096 + 5308416 = 5936^2 + 2304^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40544519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27178 + ... + 28630.

Almost surely, 2^40544512 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 40544512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40864670).

40544512 is an abundant number, since it is smaller than the sum of its proper divisors (41184828).

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

40544512 is a wasteful number, since it uses less digits than its factorization.

40544512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578 (or 1564 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 40544512 is about 6367.4572633038. The cubic root of 40544512 is about 343.5400378641.

The spelling of 40544512 in words is "forty million, five hundred forty-four thousand, five hundred twelve".