8025865428 has 36 divisors (see below), whose sum is σ = 21784493472. Its totient is φ = 2293104240.

The previous prime is 8025865327. The next prime is 8025865451. The reversal of 8025865428 is 8245685208.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6824128 + ... + 6825303.

Almost surely, 2^8025865428 is an apocalyptic number.

It is an amenable number.

8025865428 is an abundant number, since it is smaller than the sum of its proper divisors (13758628044).

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

8025865428 is a wasteful number, since it uses less digits than its factorization.

8025865428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13649452 (or 13649443 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 48.

The square root of 8025865428 is about 89587.1945536861. The cubic root of 8025865428 is about 2002.1531335096.

The spelling of 8025865428 in words is "eight billion, twenty-five million, eight hundred sixty-five thousand, four hundred twenty-eight".