285104448 has 140 divisors (see below), whose sum is σ = 865469440. Its totient is φ = 92752128.

The previous prime is 285104431. The next prime is 285104473. The reversal of 285104448 is 844401582.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 222273 + ... + 223551.

Almost surely, 2^285104448 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 285104448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432734720).

285104448 is an abundant number, since it is smaller than the sum of its proper divisors (580364992).

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

285104448 is a wasteful number, since it uses less digits than its factorization.

285104448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346 (or 1327 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The square root of 285104448 is about 16885.0362155371. The cubic root of 285104448 is about 658.1648192237.

The spelling of 285104448 in words is "two hundred eighty-five million, one hundred four thousand, four hundred forty-eight".