40515044 has 12 divisors (see below), whose sum is σ = 71041068. Its totient is φ = 20217600.

The previous prime is 40515023. The next prime is 40515067. The reversal of 40515044 is 44051504.

40515044 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 10484644 + 30030400 = 3238^2 + 5480^2 .

It is an unprimeable number.

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, 7637 + ... + 11804.

It is an arithmetic number, because the mean of its divisors is an integer number (5920089).

Almost surely, 2^40515044 is an apocalyptic number.

It is an amenable number.

40515044 is a deficient number, since it is larger than the sum of its proper divisors (30526024).

40515044 is a wasteful number, since it uses less digits than its factorization.

40515044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19966 (or 19964 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 40515044 is about 6365.1428892052. The cubic root of 40515044 is about 343.4567886900.

Adding to 40515044 its reverse (44051504), we get a palindrome (84566548).

The spelling of 40515044 in words is "forty million, five hundred fifteen thousand, forty-four".