448928945 has 16 divisors (see below), whose sum is σ = 573719760. Its totient is φ = 336052224.

The previous prime is 448928939. The next prime is 448928947. The reversal of 448928945 is 549829844.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1014049 + 447914896 = 1007^2 + 21164^2 .

It is a cyclic number.

It is not a de Polignac number, because 448928945 - 2⁴ = 448928929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (448928947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560 + ... + 29969.

It is an arithmetic number, because the mean of its divisors is an integer number (35857485).

Almost surely, 2^448928945 is an apocalyptic number.

It is an amenable number.

448928945 is a deficient number, since it is larger than the sum of its proper divisors (124790815).

448928945 is a wasteful number, since it uses less digits than its factorization.

448928945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30724.

The product of its digits is 3317760, while the sum is 53.

The square root of 448928945 is about 21187.9433876910. The cubic root of 448928945 is about 765.7009793707.

The spelling of 448928945 in words is "four hundred forty-eight million, nine hundred twenty-eight thousand, nine hundred forty-five".