40987444 has 12 divisors (see below), whose sum is σ = 73081764. Its totient is φ = 20106944.

The previous prime is 40987439. The next prime is 40987481. The reversal of 40987444 is 44478904.

40987444 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 18062500 + 22924944 = 4250^2 + 4788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40987397 and 40987406.

It is a congruent number.

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, 96457 + ... + 96880.

It is an arithmetic number, because the mean of its divisors is an integer number (6090147).

Almost surely, 2^40987444 is an apocalyptic number.

It is an amenable number.

40987444 is a deficient number, since it is larger than the sum of its proper divisors (32094320).

40987444 is a wasteful number, since it uses less digits than its factorization.

40987444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193394 (or 193392 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 40987444 is about 6402.1437034793. The cubic root of 40987444 is about 344.7865205943.

The spelling of 40987444 in words is "forty million, nine hundred eighty-seven thousand, four hundred forty-four".