440452241 has 2 divisors, whose sum is σ = 440452242. Its totient is φ = 440452240.

The previous prime is 440452193. The next prime is 440452267. The reversal of 440452241 is 142254044.

It is an a-pointer prime, because the next prime (440452267) can be obtained adding 440452241 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296356225 + 144096016 = 17215^2 + 12004^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440452241 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 440452241.

It is not a weakly prime, because it can be changed into another prime (440442241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220226120 + 220226121.

It is an arithmetic number, because the mean of its divisors is an integer number (220226121).

Almost surely, 2^440452241 is an apocalyptic number.

It is an amenable number.

440452241 is a deficient number, since it is larger than the sum of its proper divisors (1).

440452241 is an equidigital number, since it uses as much as digits as its factorization.

440452241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 440452241 is about 20986.9540667530. The cubic root of 440452241 is about 760.8509864140.

The spelling of 440452241 in words is "four hundred forty million, four hundred fifty-two thousand, two hundred forty-one".