440245143 has 48 divisors (see below), whose sum is σ = 745836000. Its totient is φ = 247774464.

The previous prime is 440245133. The next prime is 440245147. The reversal of 440245143 is 341542044.

It is a happy number.

It is not a de Polignac number, because 440245143 - 2⁸ = 440244887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440245147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61053 + ... + 67881.

It is an arithmetic number, because the mean of its divisors is an integer number (15538250).

Almost surely, 2^440245143 is an apocalyptic number.

440245143 is a deficient number, since it is larger than the sum of its proper divisors (305590857).

440245143 is a wasteful number, since it uses less digits than its factorization.

440245143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6896 (or 6893 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 440245143 is about 20982.0195167195. The cubic root of 440245143 is about 760.7317185300.

Adding to 440245143 its reverse (341542044), we get a palindrome (781787187).

The spelling of 440245143 in words is "four hundred forty million, two hundred forty-five thousand, one hundred forty-three".