285940672 has 28 divisors (see below), whose sum is σ = 576723256. Its totient is φ = 140624640.

The previous prime is 285940661. The next prime is 285940673. The reversal of 285940672 is 276049582.

It is a super-3 number, since 3×285940672³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285940673) 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, 32718 + ... + 40525.

Almost surely, 2^285940672 is an apocalyptic number.

It is an amenable number.

285940672 is an abundant number, since it is smaller than the sum of its proper divisors (290782584).

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

285940672 is an equidigital number, since it uses as much as digits as its factorization.

285940672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73316 (or 73306 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 285940672 is about 16909.7803652206. The cubic root of 285940672 is about 658.8076666749.

The spelling of 285940672 in words is "two hundred eighty-five million, nine hundred forty thousand, six hundred seventy-two".