285478342 has 8 divisors (see below), whose sum is σ = 428718600. Its totient is φ = 142572144.

The previous prime is 285478327. The next prime is 285478343. The reversal of 285478342 is 243874582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285478343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81367 + ... + 84802.

It is an arithmetic number, because the mean of its divisors is an integer number (53589825).

Almost surely, 2^285478342 is an apocalyptic number.

285478342 is a deficient number, since it is larger than the sum of its proper divisors (143240258).

285478342 is a wasteful number, since it uses less digits than its factorization.

285478342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167030.

The product of its digits is 430080, while the sum is 43.

The square root of 285478342 is about 16896.1043439013. The cubic root of 285478342 is about 658.4524055020.

The spelling of 285478342 in words is "two hundred eighty-five million, four hundred seventy-eight thousand, three hundred forty-two".