285239942 has 8 divisors (see below), whose sum is σ = 460772256. Its totient is φ = 131649192.

The previous prime is 285239939. The next prime is 285239953. The reversal of 285239942 is 249932582.

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 = 285239893 and 285239902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5485358 + ... + 5485409.

It is an arithmetic number, because the mean of its divisors is an integer number (57596532).

Almost surely, 2^285239942 is an apocalyptic number.

285239942 is a deficient number, since it is larger than the sum of its proper divisors (175532314).

285239942 is a wasteful number, since it uses less digits than its factorization.

285239942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10970782.

The product of its digits is 311040, while the sum is 44.

The square root of 285239942 is about 16889.0479897477. The cubic root of 285239942 is about 658.2690655345.

The spelling of 285239942 in words is "two hundred eighty-five million, two hundred thirty-nine thousand, nine hundred forty-two".