40544032 has 48 divisors (see below), whose sum is σ = 86026752. Its totient is φ = 18754560.

The previous prime is 40544029. The next prime is 40544041. The reversal of 40544032 is 23044504.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40543994 and 40544012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21928 + ... + 23704.

It is an arithmetic number, because the mean of its divisors is an integer number (1792224).

Almost surely, 2^40544032 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 40544032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43013376).

40544032 is an abundant number, since it is smaller than the sum of its proper divisors (45482720).

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

40544032 is a wasteful number, since it uses less digits than its factorization.

40544032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 40544032 is about 6367.4195715376. The cubic root of 40544032 is about 343.5386821535.

Adding to 40544032 its reverse (23044504), we get a palindrome (63588536).

The spelling of 40544032 in words is "forty million, five hundred forty-four thousand, thirty-two".