285503942 has 8 divisors (see below), whose sum is σ = 428540232. Its totient is φ = 142657200.

The previous prime is 285503941. The next prime is 285503947. The reversal of 285503942 is 249305582.

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

It is a junction number, because it is equal to n+sod(n) for n = 285503896 and 285503905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285503941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43559 + ... + 49682.

It is an arithmetic number, because the mean of its divisors is an integer number (53567529).

Almost surely, 2^285503942 is an apocalyptic number.

285503942 is a deficient number, since it is larger than the sum of its proper divisors (143036290).

285503942 is a wasteful number, since it uses less digits than its factorization.

285503942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94774.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 285503942 is about 16896.8618979975. The cubic root of 285503942 is about 658.4720869457.

The spelling of 285503942 in words is "two hundred eighty-five million, five hundred three thousand, nine hundred forty-two".