285303029 has 4 divisors (see below), whose sum is σ = 311239680. Its totient is φ = 259366380.

The previous prime is 285303001. The next prime is 285303037. The reversal of 285303029 is 920303582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 285303029 - 2¹⁶ = 285237493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 285302986 and 285303004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285303059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12968309 + ... + 12968330.

It is an arithmetic number, because the mean of its divisors is an integer number (77809920).

Almost surely, 2^285303029 is an apocalyptic number.

It is an amenable number.

285303029 is a deficient number, since it is larger than the sum of its proper divisors (25936651).

285303029 is a wasteful number, since it uses less digits than its factorization.

285303029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25936650.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 285303029 is about 16890.9155761314. The cubic root of 285303029 is about 658.3175921177.

The spelling of 285303029 in words is "two hundred eighty-five million, three hundred three thousand, twenty-nine".