285148416 has 288 divisors, whose sum is σ = 941875200. Its totient is φ = 74833920.

The previous prime is 285148397. The next prime is 285148421. The reversal of 285148416 is 614841582.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4832995 + ... + 4833053.

It is an arithmetic number, because the mean of its divisors is an integer number (3270400).

Almost surely, 2^285148416 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 285148416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470937600).

285148416 is an abundant number, since it is smaller than the sum of its proper divisors (656726784).

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

285148416 is a wasteful number, since it uses less digits than its factorization.

285148416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 131 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 285148416 is about 16886.3381465610. The cubic root of 285148416 is about 658.1986509223.

Adding to 285148416 its reverse (614841582), we get a palindrome (899989998).

The spelling of 285148416 in words is "two hundred eighty-five million, one hundred forty-eight thousand, four hundred sixteen".