440171047 has 8 divisors (see below), whose sum is σ = 446389344. Its totient is φ = 433993728.

The previous prime is 440170909. The next prime is 440171057. The reversal of 440171047 is 740171044.

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 440171047 - 2¹⁹ = 439646759 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 (440171057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11718 + ... + 31900.

It is an arithmetic number, because the mean of its divisors is an integer number (55798668).

Almost surely, 2^440171047 is an apocalyptic number.

440171047 is a deficient number, since it is larger than the sum of its proper divisors (6218297).

440171047 is a wasteful number, since it uses less digits than its factorization.

440171047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20489.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 440171047 is about 20980.2537401243. The cubic root of 440171047 is about 760.6890375064.

The spelling of 440171047 in words is "four hundred forty million, one hundred seventy-one thousand, forty-seven".