1028466725 has 36 divisors (see below), whose sum is σ = 1509661188. Its totient is φ = 690412800.

The previous prime is 1028466679. The next prime is 1028466779. The reversal of 1028466725 is 5276648201.

It can be written as a sum of positive squares in 6 ways, for example, as 280663009 + 747803716 = 16753^2 + 27346^2 .

It is not a de Polignac number, because 1028466725 - 2¹² = 1028462629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26249 + ... + 52401.

It is an arithmetic number, because the mean of its divisors is an integer number (41935033).

Almost surely, 2^1028466725 is an apocalyptic number.

It is an amenable number.

1028466725 is a deficient number, since it is larger than the sum of its proper divisors (481194463).

1028466725 is a wasteful number, since it uses less digits than its factorization.

1028466725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26198 (or 26182 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 1028466725 is about 32069.7166342330. The cubic root of 1028466725 is about 1009.4002664393.

The spelling of 1028466725 in words is "one billion, twenty-eight million, four hundred sixty-six thousand, seven hundred twenty-five".