40040024 has 32 divisors (see below), whose sum is σ = 76788000. Its totient is φ = 19568640.

The previous prime is 40040017. The next prime is 40040027. The reversal of 40040024 is 42004004.

40040024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40039990 and 40040008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040027) 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 in 7 ways as a sum of consecutive naturals, for example, 88952 + ... + 89400.

It is an arithmetic number, because the mean of its divisors is an integer number (2399625).

Almost surely, 2^40040024 is an apocalyptic number.

It is an amenable number.

40040024 is a deficient number, since it is larger than the sum of its proper divisors (36747976).

40040024 is a wasteful number, since it uses less digits than its factorization.

40040024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 679 counting only the distinct ones).

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

The square root of 40040024 is about 6327.7187042409. The cubic root of 40040024 is about 342.1092181069.

Adding to 40040024 its reverse (42004004), we get a palindrome (82044028).

The spelling of 40040024 in words is "forty million, forty thousand, twenty-four".