285964336 has 80 divisors (see below), whose sum is σ = 682242048. Its totient is φ = 113414400.

The previous prime is 285964297. The next prime is 285964337. The reversal of 285964336 is 633469582.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (285964337) 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 15 ways as a sum of consecutive naturals, for example, 78066 + ... + 81646.

Almost surely, 2^285964336 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 285964336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341121024).

285964336 is an abundant number, since it is smaller than the sum of its proper divisors (396277712).

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

285964336 is a wasteful number, since it uses less digits than its factorization.

285964336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3650 (or 3644 counting only the distinct ones).

The product of its digits is 933120, while the sum is 46.

The square root of 285964336 is about 16910.4800641496. The cubic root of 285964336 is about 658.8258401355.

The spelling of 285964336 in words is "two hundred eighty-five million, nine hundred sixty-four thousand, three hundred thirty-six".