285474816 has 171 divisors, whose sum is σ = 906492223. Its totient is φ = 86507520.

The previous prime is 285474809. The next prime is 285474817. The reversal of 285474816 is 618474582.

The square root of 285474816 is 16896.

It is a perfect power (a square), and thus also a powerful number.

285474816 is a `hidden beast` number, since 28 + 547 + 4 + 81 + 6 = 666.

It is a Duffinian number.

Its product of digits (430080) is a multiple of the sum of its prime divisors (16).

It is not an unprimeable number, because it can be changed into a prime (285474817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 25952251 + ... + 25952261.

Almost surely, 2^285474816 is an apocalyptic number.

285474816 is the 16896-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285474816

285474816 is an abundant number, since it is smaller than the sum of its proper divisors (621017407).

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

285474816 is an frugal number, since it uses more digits than its factorization.

285474816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 16 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The cubic root of 285474816 is about 658.4496945985.

The spelling of 285474816 in words is "two hundred eighty-five million, four hundred seventy-four thousand, eight hundred sixteen".