448031869 has 2 divisors, whose sum is σ = 448031870. Its totient is φ = 448031868.

The previous prime is 448031863. The next prime is 448031897. The reversal of 448031869 is 968130844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 424895769 + 23136100 = 20613^2 + 4810^2 .

It is a cyclic number.

It is not a de Polignac number, because 448031869 - 2²¹ = 445934717 is a prime.

It is a super-2 number, since 2×448031869² = 401465111279266322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (448031863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224015934 + 224015935.

It is an arithmetic number, because the mean of its divisors is an integer number (224015935).

Almost surely, 2^448031869 is an apocalyptic number.

It is an amenable number.

448031869 is a deficient number, since it is larger than the sum of its proper divisors (1).

448031869 is an equidigital number, since it uses as much as digits as its factorization.

448031869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 448031869 is about 21166.7633094907. The cubic root of 448031869 is about 765.1906164894.

It can be divided in two parts, 448031 and 869, that added together give a square (448900 = 670²).

The spelling of 448031869 in words is "four hundred forty-eight million, thirty-one thousand, eight hundred sixty-nine".