448447431 has 16 divisors (see below), whose sum is σ = 607799808. Its totient is φ = 294050400.

The previous prime is 448447409. The next prime is 448447513. The reversal of 448447431 is 134744844.

It is a happy number.

It is not a de Polignac number, because 448447431 - 2⁷ = 448447303 is a prime.

It is a super-2 number, since 2×448447431² = 402210196740999522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 448447431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448447231) 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 in 15 ways as a sum of consecutive naturals, for example, 95910 + ... + 100476.

It is an arithmetic number, because the mean of its divisors is an integer number (37987488).

Almost surely, 2^448447431 is an apocalyptic number.

448447431 is a deficient number, since it is larger than the sum of its proper divisors (159352377).

448447431 is a wasteful number, since it uses less digits than its factorization.

448447431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5102.

The product of its digits is 172032, while the sum is 39.

The square root of 448447431 is about 21176.5774146815. The cubic root of 448447431 is about 765.4271218979.

It can be divided in two parts, 448447 and 431, that added together give a triangular number (448878 = T₉₄₇).

The spelling of 448447431 in words is "four hundred forty-eight million, four hundred forty-seven thousand, four hundred thirty-one".