40002044 has 6 divisors (see below), whose sum is σ = 70003584. Its totient is φ = 20001020.

The previous prime is 40002043. The next prime is 40002073. The reversal of 40002044 is 44020004.

40002044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40002041) 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 as a sum of consecutive naturals, namely, 5000252 + ... + 5000259.

It is an arithmetic number, because the mean of its divisors is an integer number (11667264).

Almost surely, 2^40002044 is an apocalyptic number.

It is an amenable number.

40002044 is a deficient number, since it is larger than the sum of its proper divisors (30001540).

40002044 is a wasteful number, since it uses less digits than its factorization.

40002044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000515 (or 10000513 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 40002044 is about 6324.7169106609. The cubic root of 40002044 is about 342.0010145542.

Adding to 40002044 its reverse (44020004), we get a palindrome (84022048).

The spelling of 40002044 in words is "forty million, two thousand, forty-four", and thus it is an eban number.