285037056 has 240 divisors, whose sum is σ = 893692800. Its totient is φ = 90574848.

The previous prime is 285037037. The next prime is 285037057. The reversal of 285037056 is 650730582.

285037056 is a `hidden beast` number, since 285 + 0 + 370 + 5 + 6 = 666.

It is a super-2 number, since 2×285037056² = 162492246586294272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 285037056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285037057) 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 23 ways as a sum of consecutive naturals, for example, 3608025 + ... + 3608103.

It is an arithmetic number, because the mean of its divisors is an integer number (3723720).

Almost surely, 2^285037056 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 285037056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446846400).

285037056 is an abundant number, since it is smaller than the sum of its proper divisors (608655744).

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

285037056 is an frugal number, since it uses more digits than its factorization.

285037056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 285037056 is about 16883.0404844625. The cubic root of 285037056 is about 658.1129568985.

The spelling of 285037056 in words is "two hundred eighty-five million, thirty-seven thousand, fifty-six".