40443445 has 8 divisors (see below), whose sum is σ = 55465344. Its totient is φ = 27732624.

The previous prime is 40443433. The next prime is 40443449. The reversal of 40443445 is 54434404.

40443445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40443445 - 2⁵ = 40443413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40443449) 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, 577729 + ... + 577798.

It is an arithmetic number, because the mean of its divisors is an integer number (6933168).

Almost surely, 2^40443445 is an apocalyptic number.

It is an amenable number.

40443445 is a deficient number, since it is larger than the sum of its proper divisors (15021899).

40443445 is a wasteful number, since it uses less digits than its factorization.

40443445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155539.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 40443445 is about 6359.5160979433. The cubic root of 40443445 is about 343.2543481443.

Adding to 40443445 its reverse (54434404), we get a palindrome (94877849).

The spelling of 40443445 in words is "forty million, four hundred forty-three thousand, four hundred forty-five".