285942254 has 12 divisors (see below), whose sum is σ = 464445216. Its totient is φ = 131973192.

The previous prime is 285942247. The next prime is 285942257. The reversal of 285942254 is 452249582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285942257) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 422654 + ... + 423329.

It is an arithmetic number, because the mean of its divisors is an integer number (38703768).

Almost surely, 2^285942254 is an apocalyptic number.

285942254 is a deficient number, since it is larger than the sum of its proper divisors (178502962).

285942254 is a wasteful number, since it uses less digits than its factorization.

285942254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846011 (or 845998 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The square root of 285942254 is about 16909.8271428185. The cubic root of 285942254 is about 658.8088816493.

The spelling of 285942254 in words is "two hundred eighty-five million, nine hundred forty-two thousand, two hundred fifty-four".