285211423 has 8 divisors (see below), whose sum is σ = 326194848. Its totient is φ = 244287744.

The previous prime is 285211411. The next prime is 285211441. The reversal of 285211423 is 324112582.

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

It is a cyclic number.

It is not a de Polignac number, because 285211423 - 2¹³ = 285203231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285211391 and 285211400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285211403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4186 + ... + 24247.

It is an arithmetic number, because the mean of its divisors is an integer number (40774356).

Almost surely, 2^285211423 is an apocalyptic number.

285211423 is a deficient number, since it is larger than the sum of its proper divisors (40983425).

285211423 is a wasteful number, since it uses less digits than its factorization.

285211423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29873.

The product of its digits is 3840, while the sum is 28.

The square root of 285211423 is about 16888.2036640964. The cubic root of 285211423 is about 658.2471263430.

The spelling of 285211423 in words is "two hundred eighty-five million, two hundred eleven thousand, four hundred twenty-three".