40443066 has 24 divisors (see below), whose sum is σ = 87845940. Its totient is φ = 13447296.

The previous prime is 40443059. The next prime is 40443079. The reversal of 40443066 is 66034404.

It is a happy number.

40443066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40259025 + 184041 = 6345^2 + 429^2 .

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 11 ways as a sum of consecutive naturals, for example, 5200 + ... + 10388.

Almost surely, 2^40443066 is an apocalyptic number.

40443066 is an abundant number, since it is smaller than the sum of its proper divisors (47402874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40443066 is a wasteful number, since it uses less digits than its factorization.

40443066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630 (or 5627 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 40443066 is about 6359.4863000088. The cubic root of 40443066 is about 343.2532759161.

It can be divided in two parts, 404430 and 66, that added together give a square (404496 = 636²).

The spelling of 40443066 in words is "forty million, four hundred forty-three thousand, sixty-six".