284970136 has 32 divisors (see below), whose sum is σ = 586414080. Its totient is φ = 128749600.

The previous prime is 284970107. The next prime is 284970137. The reversal of 284970136 is 631079482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284970137) 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, 5001 + ... + 24391.

It is an arithmetic number, because the mean of its divisors is an integer number (18325440).

Almost surely, 2^284970136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 284970136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293207040).

284970136 is an abundant number, since it is smaller than the sum of its proper divisors (301443944).

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

284970136 is a wasteful number, since it uses less digits than its factorization.

284970136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19575 (or 19571 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 284970136 is about 16881.0584976180. The cubic root of 284970136 is about 658.0614497170.

The spelling of 284970136 in words is "two hundred eighty-four million, nine hundred seventy thousand, one hundred thirty-six".