40544740 has 12 divisors (see below), whose sum is σ = 85143996. Its totient is φ = 16217888.

The previous prime is 40544731. The next prime is 40544747. The reversal of 40544740 is 4744504.

40544740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13003236 + 27541504 = 3606^2 + 5248^2 .

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 40544699 and 40544708.

It is not an unprimeable number, because it can be changed into a prime (40544747) 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 3 ways as a sum of consecutive naturals, for example, 1013599 + ... + 1013638.

It is an arithmetic number, because the mean of its divisors is an integer number (7095333).

Almost surely, 2^40544740 is an apocalyptic number.

It is an amenable number.

40544740 is an abundant number, since it is smaller than the sum of its proper divisors (44599256).

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

40544740 is a wasteful number, since it uses less digits than its factorization.

40544740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027246 (or 2027244 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 40544740 is about 6367.4751668146. The cubic root of 40544740 is about 343.5406818229.

The spelling of 40544740 in words is "forty million, five hundred forty-four thousand, seven hundred forty".