1028511468 has 18 divisors (see below), whose sum is σ = 2599848524. Its totient is φ = 342837144.

The previous prime is 1028511461. The next prime is 1028511503. The reversal of 1028511468 is 8641158201.

1028511468 is a `hidden beast` number, since 102 + 85 + 11 + 468 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 28569763 = 1028511468 / (1 + 0 + 2 + 8 + 5 + 1 + 1 + 4 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (1028511461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14284846 + ... + 14284917.

Almost surely, 2^1028511468 is an apocalyptic number.

1028511468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1028511468 is an abundant number, since it is smaller than the sum of its proper divisors (1571337056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1028511468 is a wasteful number, since it uses less digits than its factorization.

1028511468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28569773 (or 28569768 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 1028511468 is about 32070.4142162212. The cubic root of 1028511468 is about 1009.4149040677.

Adding to 1028511468 its reverse (8641158201), we get a palindrome (9669669669).

The spelling of 1028511468 in words is "one billion, twenty-eight million, five hundred eleven thousand, four hundred sixty-eight".