805281428 has 24 divisors (see below), whose sum is σ = 1680588672. Its totient is φ = 330115104.

The previous prime is 805281419. The next prime is 805281437. The reversal of 805281428 is 824182508.

It is an interprime number because it is at equal distance from previous prime (805281419) and next prime (805281437).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 805281391 and 805281400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624575 + ... + 625862.

It is an arithmetic number, because the mean of its divisors is an integer number (70024528).

Almost surely, 2^805281428 is an apocalyptic number.

It is an amenable number.

805281428 is an abundant number, since it is smaller than the sum of its proper divisors (875307244).

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

805281428 is a wasteful number, since it uses less digits than its factorization.

805281428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250471 (or 1250469 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 805281428 is about 28377.4810016675. The cubic root of 805281428 is about 930.3561390855.

The spelling of 805281428 in words is "eight hundred five million, two hundred eighty-one thousand, four hundred twenty-eight".