40443445247 has 4 divisors (see below), whose sum is σ = 42822471456. Its totient is φ = 38064419040.

The previous prime is 40443445241. The next prime is 40443445253. The reversal of 40443445247 is 74254434404.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40443445241) and next prime (40443445253).

It is a cyclic number.

It is not a de Polignac number, because 40443445247 - 2⁶ = 40443445183 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 (40443445241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189513079 + ... + 1189513112.

It is an arithmetic number, because the mean of its divisors is an integer number (10705617864).

Almost surely, 2^40443445247 is an apocalyptic number.

40443445247 is a deficient number, since it is larger than the sum of its proper divisors (2379026209).

40443445247 is a wasteful number, since it uses less digits than its factorization.

40443445247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379026208.

The product of its (nonzero) digits is 860160, while the sum is 41.

The spelling of 40443445247 in words is "forty billion, four hundred forty-three million, four hundred forty-five thousand, two hundred forty-seven".