448442618 has 16 divisors (see below), whose sum is σ = 729275400. Its totient is φ = 205582656.

The previous prime is 448442581. The next prime is 448442623. The reversal of 448442618 is 816244844.

It can be written as a sum of positive squares in 4 ways, for example, as 213832129 + 234610489 = 14623^2 + 15317^2 .

It is a super-2 number, since 2×448442618² = 402201563277387848, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 54005 + ... + 61752.

Almost surely, 2^448442618 is an apocalyptic number.

448442618 is a deficient number, since it is larger than the sum of its proper divisors (280832782).

448442618 is a wasteful number, since it uses less digits than its factorization.

448442618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115921.

The product of its digits is 196608, while the sum is 41.

The square root of 448442618 is about 21176.4637746721. The cubic root of 448442618 is about 765.4243835510.

The spelling of 448442618 in words is "four hundred forty-eight million, four hundred forty-two thousand, six hundred eighteen".