40547444 has 48 divisors (see below), whose sum is σ = 86016000. Its totient is φ = 16337376.

The previous prime is 40547443. The next prime is 40547447. The reversal of 40547444 is 44474504.

40547444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40547444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40547443) 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 15 ways as a sum of consecutive naturals, for example, 105677 + ... + 106059.

It is an arithmetic number, because the mean of its divisors is an integer number (1792000).

Almost surely, 2^40547444 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 40547444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43008000).

40547444 is an abundant number, since it is smaller than the sum of its proper divisors (45468556).

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

40547444 is a wasteful number, since it uses less digits than its factorization.

40547444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 32.

The square root of 40547444 is about 6367.6874923319. The cubic root of 40547444 is about 343.5483187638.

The spelling of 40547444 in words is "forty million, five hundred forty-seven thousand, four hundred forty-four".