40440044 has 6 divisors (see below), whose sum is σ = 70770084. Its totient is φ = 20220020.

The previous prime is 40440019. The next prime is 40440077. The reversal of 40440044 is 44004404.

It is a junction number, because it is equal to n+sod(n) for n = 40439998 and 40440025.

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 as a sum of consecutive naturals, namely, 5055002 + ... + 5055009.

It is an arithmetic number, because the mean of its divisors is an integer number (11795014).

Almost surely, 2^40440044 is an apocalyptic number.

It is an amenable number.

40440044 is a deficient number, since it is larger than the sum of its proper divisors (30330040).

40440044 is a wasteful number, since it uses less digits than its factorization.

40440044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10110015 (or 10110013 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 40440044 is about 6359.2486977630. The cubic root of 40440044 is about 343.2447261420.

Adding to 40440044 its reverse (44004404), we get a palindrome (84444448).

The spelling of 40440044 in words is "forty million, four hundred forty thousand, forty-four".