40043516 has 24 divisors (see below), whose sum is σ = 71670144. Its totient is φ = 19571760.

The previous prime is 40043489. The next prime is 40043527. The reversal of 40043516 is 61534004.

It is a happy number.

40043516 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 = 40043491 and 40043500.

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 7 ways as a sum of consecutive naturals, for example, 33611 + ... + 34781.

It is an arithmetic number, because the mean of its divisors is an integer number (2986256).

Almost surely, 2^40043516 is an apocalyptic number.

It is an amenable number.

40043516 is a deficient number, since it is larger than the sum of its proper divisors (31626628).

40043516 is a wasteful number, since it uses less digits than its factorization.

40043516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40043516 is about 6327.9946270521. The cubic root of 40043516 is about 342.1191632446.

The spelling of 40043516 in words is "forty million, forty-three thousand, five hundred sixteen".