40439024 has 20 divisors (see below), whose sum is σ = 78468936. Its totient is φ = 20188992.

The previous prime is 40439023. The next prime is 40439027. The reversal of 40439024 is 42093404.

It is a junction number, because it is equal to n+sod(n) for n = 40438984 and 40439002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40439023) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 12167 + ... + 15129.

Almost surely, 2^40439024 is an apocalyptic number.

It is an amenable number.

40439024 is a deficient number, since it is larger than the sum of its proper divisors (38029912).

40439024 is a wasteful number, since it uses less digits than its factorization.

40439024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824 (or 3818 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 40439024 is about 6359.1684991043. The cubic root of 40439024 is about 343.2418402849.

The spelling of 40439024 in words is "forty million, four hundred thirty-nine thousand, twenty-four".