285296384280 has 64 divisors (see below), whose sum is σ = 856017849600. Its totient is φ = 76067596160.

The previous prime is 285296384257. The next prime is 285296384333. The reversal of 285296384280 is 82483692582.

It is a super-3 number, since 3×285296384280³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 285296384280.

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 15 ways as a sum of consecutive naturals, for example, 638125 + ... + 988835.

It is an arithmetic number, because the mean of its divisors is an integer number (13375278900).

Almost surely, 2^285296384280 is an apocalyptic number.

285296384280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285296384280 is an abundant number, since it is smaller than the sum of its proper divisors (570721465320).

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

285296384280 is a wasteful number, since it uses less digits than its factorization.

285296384280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357504 (or 357500 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 57.

The spelling of 285296384280 in words is "two hundred eighty-five billion, two hundred ninety-six million, three hundred eighty-four thousand, two hundred eighty".