285957448 has 32 divisors (see below), whose sum is σ = 645019200. Its totient is φ = 116102592.

The previous prime is 285957443. The next prime is 285957457. The reversal of 285957448 is 844759582.

It is a junction number, because it is equal to n+sod(n) for n = 285957395 and 285957404.

It is not an unprimeable number, because it can be changed into a prime (285957443) 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, 133315 + ... + 135442.

It is an arithmetic number, because the mean of its divisors is an integer number (20156850).

Almost surely, 2^285957448 is an apocalyptic number.

285957448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

285957448 is an abundant number, since it is smaller than the sum of its proper divisors (359061752).

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

285957448 is a wasteful number, since it uses less digits than its factorization.

285957448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268789 (or 268785 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 52.

The square root of 285957448 is about 16910.2764022354. The cubic root of 285957448 is about 658.8205503979.

The spelling of 285957448 in words is "two hundred eighty-five million, nine hundred fifty-seven thousand, four hundred forty-eight".