285205243424 has 48 divisors (see below), whose sum is σ = 572336476992. Its totient is φ = 139852247808.

The previous prime is 285205243417. The next prime is 285205243429. The reversal of 285205243424 is 424342502582.

It is not an unprimeable number, because it can be changed into a prime (285205243429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4074707 + ... + 4144109.

It is an arithmetic number, because the mean of its divisors is an integer number (11923676604).

Almost surely, 2^285205243424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285205243424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286168238496).

285205243424 is an abundant number, since it is smaller than the sum of its proper divisors (287131233568).

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

285205243424 is a wasteful number, since it uses less digits than its factorization.

285205243424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71889 (or 71881 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 41.

The spelling of 285205243424 in words is "two hundred eighty-five billion, two hundred five million, two hundred forty-three thousand, four hundred twenty-four".