448781243 has 2 divisors, whose sum is σ = 448781244. Its totient is φ = 448781242.

The previous prime is 448781191. The next prime is 448781257. The reversal of 448781243 is 342187844.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 448781243 - 2¹⁴ = 448764859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 448781243.

It is not a weakly prime, because it can be changed into another prime (448781143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224390621 + 224390622.

It is an arithmetic number, because the mean of its divisors is an integer number (224390622).

Almost surely, 2^448781243 is an apocalyptic number.

448781243 is a deficient number, since it is larger than the sum of its proper divisors (1).

448781243 is an equidigital number, since it uses as much as digits as its factorization.

448781243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172032, while the sum is 41.

The square root of 448781243 is about 21184.4575809720. The cubic root of 448781243 is about 765.6169957969.

The spelling of 448781243 in words is "four hundred forty-eight million, seven hundred eighty-one thousand, two hundred forty-three".