284735136 has 48 divisors (see below), whose sum is σ = 854207424. Its totient is φ = 81352704.

The previous prime is 284735131. The next prime is 284735173. The reversal of 284735136 is 631537482.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 284735094 and 284735103.

It is not an unprimeable number, because it can be changed into a prime (284735131) 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 7 ways as a sum of consecutive naturals, for example, 211185 + ... + 212528.

It is an arithmetic number, because the mean of its divisors is an integer number (17795988).

Almost surely, 2^284735136 is an apocalyptic number.

It is an amenable number.

284735136 is an abundant number, since it is smaller than the sum of its proper divisors (569472288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

284735136 is a wasteful number, since it uses less digits than its factorization.

284735136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423733 (or 423725 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 284735136 is about 16874.0965980404. The cubic root of 284735136 is about 657.8805103252.

The spelling of 284735136 in words is "two hundred eighty-four million, seven hundred thirty-five thousand, one hundred thirty-six".