1028581448 has 16 divisors (see below), whose sum is σ = 1929904380. Its totient is φ = 513940288.

The previous prime is 1028581429. The next prime is 1028581453. The reversal of 1028581448 is 8441858201.

1028581448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 997422724 + 31158724 = 31582^2 + 5582^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31115 + ... + 55002.

Almost surely, 2^1028581448 is an apocalyptic number.

It is an amenable number.

1028581448 is a deficient number, since it is larger than the sum of its proper divisors (901322932).

1028581448 is a wasteful number, since it uses less digits than its factorization.

1028581448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87616 (or 87612 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 41.

The square root of 1028581448 is about 32071.5052343977. The cubic root of 1028581448 is about 1009.4377971046.

The spelling of 1028581448 in words is "one billion, twenty-eight million, five hundred eighty-one thousand, four hundred forty-eight".