285306403396 has 24 divisors (see below), whose sum is σ = 570629062080. Its totient is φ = 122270689632.

The previous prime is 285306403357. The next prime is 285306403397. The reversal of 285306403396 is 693304603582.

It is a super-2 number, since 2×285306403396² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (285306403397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1019175 + ... + 1268593.

It is an arithmetic number, because the mean of its divisors is an integer number (23776210920).

Almost surely, 2^285306403396 is an apocalyptic number.

It is an amenable number.

285306403396 is an abundant number, since it is smaller than the sum of its proper divisors (285322658684).

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

285306403396 is a wasteful number, since it uses less digits than its factorization.

285306403396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290283 (or 290281 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 49.

The spelling of 285306403396 in words is "two hundred eighty-five billion, three hundred six million, four hundred three thousand, three hundred ninety-six".