285465238 has 8 divisors (see below), whose sum is σ = 435217680. Its totient is φ = 140392680.

The previous prime is 285465211. The next prime is 285465239. The reversal of 285465238 is 832564582.

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 = 285465194 and 285465203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285465239) 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 3 ways as a sum of consecutive naturals, for example, 1169818 + ... + 1170061.

It is an arithmetic number, because the mean of its divisors is an integer number (54402210).

Almost surely, 2^285465238 is an apocalyptic number.

285465238 is a deficient number, since it is larger than the sum of its proper divisors (149752442).

285465238 is a wasteful number, since it uses less digits than its factorization.

285465238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339942.

The product of its digits is 460800, while the sum is 43.

The square root of 285465238 is about 16895.7165577551. The cubic root of 285465238 is about 658.4423306078.

The spelling of 285465238 in words is "two hundred eighty-five million, four hundred sixty-five thousand, two hundred thirty-eight".