440874479 has 2 divisors, whose sum is σ = 440874480. Its totient is φ = 440874478.

The previous prime is 440874439. The next prime is 440874509. The reversal of 440874479 is 974478044.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440874479 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 (440874439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220437239 + 220437240.

It is an arithmetic number, because the mean of its divisors is an integer number (220437240).

Almost surely, 2^440874479 is an apocalyptic number.

440874479 is a deficient number, since it is larger than the sum of its proper divisors (1).

440874479 is an equidigital number, since it uses as much as digits as its factorization.

440874479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 47.

The square root of 440874479 is about 20997.0111920721. The cubic root of 440874479 is about 761.0940378092.

It can be divided in two parts, 4408 and 74479, that added together give a palindrome (78887).

The spelling of 440874479 in words is "four hundred forty million, eight hundred seventy-four thousand, four hundred seventy-nine".