40489816 has 16 divisors (see below), whose sum is σ = 75990600. Its totient is φ = 20225664.

The previous prime is 40489793. The next prime is 40489819. The reversal of 40489816 is 61898404.

40489816 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 (40489819) 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 3 ways as a sum of consecutive naturals, for example, 10795 + ... + 14053.

Almost surely, 2^40489816 is an apocalyptic number.

It is an amenable number.

40489816 is a deficient number, since it is larger than the sum of its proper divisors (35500784).

40489816 is a wasteful number, since it uses less digits than its factorization.

40489816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818 (or 4814 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 40489816 is about 6363.1608497664. The cubic root of 40489816 is about 343.3854857361.

The spelling of 40489816 in words is "forty million, four hundred eighty-nine thousand, eight hundred sixteen".