285223841 has 8 divisors (see below), whose sum is σ = 345144960. Its totient is φ = 230096448.

The previous prime is 285223823. The next prime is 285223849. The reversal of 285223841 is 148322582.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285223841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285223849) 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, 1198301 + ... + 1198538.

It is an arithmetic number, because the mean of its divisors is an integer number (43143120).

Almost surely, 2^285223841 is an apocalyptic number.

It is an amenable number.

285223841 is a deficient number, since it is larger than the sum of its proper divisors (59921119).

285223841 is a wasteful number, since it uses less digits than its factorization.

285223841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396863.

The product of its digits is 30720, while the sum is 35.

The square root of 285223841 is about 16888.5713131692. The cubic root of 285223841 is about 658.2566794833.

The spelling of 285223841 in words is "two hundred eighty-five million, two hundred twenty-three thousand, eight hundred forty-one".