285601888 has 72 divisors (see below), whose sum is σ = 664347096. Its totient is φ = 119808000.

The previous prime is 285601871. The next prime is 285601903. The reversal of 285601888 is 888106582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57088 + ... + 61888.

It is an arithmetic number, because the mean of its divisors is an integer number (9227043).

Almost surely, 2^285601888 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 285601888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332173548).

285601888 is an abundant number, since it is smaller than the sum of its proper divisors (378745208).

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

285601888 is a wasteful number, since it uses less digits than its factorization.

285601888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848 (or 4827 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 46.

The square root of 285601888 is about 16899.7599982958. The cubic root of 285601888 is about 658.5473775970.

The spelling of 285601888 in words is "two hundred eighty-five million, six hundred one thousand, eight hundred eighty-eight".