285268736 has 72 divisors (see below), whose sum is σ = 604369920. Its totient is φ = 134009856.

The previous prime is 285268729. The next prime is 285268769. The reversal of 285268736 is 637862582.

It is a happy number.

285268736 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084541 + ... + 1084803.

Almost surely, 2^285268736 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 285268736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302184960).

285268736 is an abundant number, since it is smaller than the sum of its proper divisors (319101184).

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

285268736 is a wasteful number, since it uses less digits than its factorization.

285268736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 507 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 285268736 is about 16889.9004141528. The cubic root of 285268736 is about 658.2912147955.

The spelling of 285268736 in words is "two hundred eighty-five million, two hundred sixty-eight thousand, seven hundred thirty-six".