285253244 has 6 divisors (see below), whose sum is σ = 499193184. Its totient is φ = 142626620.

The previous prime is 285253223. The next prime is 285253253. The reversal of 285253244 is 442352582.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35656652 + ... + 35656659.

It is an arithmetic number, because the mean of its divisors is an integer number (83198864).

Almost surely, 2^285253244 is an apocalyptic number.

It is an amenable number.

285253244 is a deficient number, since it is larger than the sum of its proper divisors (213939940).

285253244 is a wasteful number, since it uses less digits than its factorization.

285253244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71313315 (or 71313313 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

The square root of 285253244 is about 16889.4417906573. The cubic root of 285253244 is about 658.2792980414.

The spelling of 285253244 in words is "two hundred eighty-five million, two hundred fifty-three thousand, two hundred forty-four".