285734244 has 48 divisors (see below), whose sum is σ = 710535168. Its totient is φ = 89161248.

The previous prime is 285734243. The next prime is 285734263. The reversal of 285734244 is 442437582.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (285734243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1959 + ... + 23985.

It is an arithmetic number, because the mean of its divisors is an integer number (14802816).

Almost surely, 2^285734244 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 285734244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355267584).

285734244 is an abundant number, since it is smaller than the sum of its proper divisors (424800924).

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

285734244 is a wasteful number, since it uses less digits than its factorization.

285734244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22104 (or 22102 counting only the distinct ones).

The product of its digits is 215040, while the sum is 39.

The square root of 285734244 is about 16903.6754583138. The cubic root of 285734244 is about 658.6490917187.

The spelling of 285734244 in words is "two hundred eighty-five million, seven hundred thirty-four thousand, two hundred forty-four".