285380341 has 4 divisors (see below), whose sum is σ = 286039852. Its totient is φ = 284720832.

The previous prime is 285380339. The next prime is 285380351. The reversal of 285380341 is 143083582.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 143083582 = 2 ⋅71541791.

It can be written as a sum of positive squares in 2 ways, for example, as 28579716 + 256800625 = 5346^2 + 16025^2 .

It is a cyclic number.

It is not a de Polignac number, because 285380341 - 2¹ = 285380339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 285380297 and 285380306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285380321) 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, 329106 + ... + 329971.

It is an arithmetic number, because the mean of its divisors is an integer number (71509963).

Almost surely, 2^285380341 is an apocalyptic number.

It is an amenable number.

285380341 is a deficient number, since it is larger than the sum of its proper divisors (659511).

285380341 is an equidigital number, since it uses as much as digits as its factorization.

285380341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659510.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 285380341 is about 16893.2039885867. The cubic root of 285380341 is about 658.3770508311.

The spelling of 285380341 in words is "two hundred eighty-five million, three hundred eighty thousand, three hundred forty-one".