40544424 has 24 divisors (see below), whose sum is σ = 109808010. Its totient is φ = 13514784.

The previous prime is 40544411. The next prime is 40544431. The reversal of 40544424 is 42444504.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22752900 + 17791524 = 4770^2 + 4218^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 5 ways as a sum of consecutive naturals, for example, 281487 + ... + 281630.

Almost surely, 2^40544424 is an apocalyptic number.

It is an amenable number.

40544424 is an abundant number, since it is smaller than the sum of its proper divisors (69263586).

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

40544424 is a wasteful number, since it uses less digits than its factorization.

40544424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563129 (or 563122 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 40544424 is about 6367.4503531633. The cubic root of 40544424 is about 343.5397893180.

Adding to 40544424 its reverse (42444504), we get a palindrome (82988928).

The spelling of 40544424 in words is "forty million, five hundred forty-four thousand, four hundred twenty-four".