440224871 has 2 divisors, whose sum is σ = 440224872. Its totient is φ = 440224870.

The previous prime is 440224849. The next prime is 440224909. The reversal of 440224871 is 178422044.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440224871 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440224271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220112435 + 220112436.

It is an arithmetic number, because the mean of its divisors is an integer number (220112436).

Almost surely, 2^440224871 is an apocalyptic number.

440224871 is a deficient number, since it is larger than the sum of its proper divisors (1).

440224871 is an equidigital number, since it uses as much as digits as its factorization.

440224871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 440224871 is about 20981.5364308718. The cubic root of 440224871 is about 760.7200418613.

The spelling of 440224871 in words is "four hundred forty million, two hundred twenty-four thousand, eight hundred seventy-one".