285481168 has 20 divisors (see below), whose sum is σ = 632137120. Its totient is φ = 122349024.

The previous prime is 285481151. The next prime is 285481181. The reversal of 285481168 is 861184582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274358 + ... + 1274581.

It is an arithmetic number, because the mean of its divisors is an integer number (31606856).

Almost surely, 2^285481168 is an apocalyptic number.

285481168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

285481168 is an abundant number, since it is smaller than the sum of its proper divisors (346655952).

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

285481168 is a wasteful number, since it uses less digits than its factorization.

285481168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548954 (or 2548948 counting only the distinct ones).

The product of its digits is 122880, while the sum is 43.

The square root of 285481168 is about 16896.1879724392. The cubic root of 285481168 is about 658.4545782067.

The spelling of 285481168 in words is "two hundred eighty-five million, four hundred eighty-one thousand, one hundred sixty-eight".