478144443 has 32 divisors (see below), whose sum is σ = 770444800. Its totient is φ = 257665536.

The previous prime is 478144441. The next prime is 478144463. The reversal of 478144443 is 344441874.

It is a happy number.

It is not a de Polignac number, because 478144443 - 2¹ = 478144441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478144441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88755 + ... + 93987.

It is an arithmetic number, because the mean of its divisors is an integer number (24076400).

Almost surely, 2^478144443 is an apocalyptic number.

478144443 is a deficient number, since it is larger than the sum of its proper divisors (292300357).

478144443 is a wasteful number, since it uses less digits than its factorization.

478144443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491.

The product of its digits is 172032, while the sum is 39.

The square root of 478144443 is about 21866.5141940822. The cubic root of 478144443 is about 781.9633003449.

The spelling of 478144443 in words is "four hundred seventy-eight million, one hundred forty-four thousand, four hundred forty-three".