285661024 has 48 divisors (see below), whose sum is σ = 619557120. Its totient is φ = 128568960.

The previous prime is 285661021. The next prime is 285661039. The reversal of 285661024 is 420166582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285661021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32317 + ... + 40195.

It is an arithmetic number, because the mean of its divisors is an integer number (12907440).

Almost surely, 2^285661024 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 285661024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309778560).

285661024 is an abundant number, since it is smaller than the sum of its proper divisors (333896096).

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

285661024 is a wasteful number, since it uses less digits than its factorization.

285661024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8003 (or 7995 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 285661024 is about 16901.5095183833. The cubic root of 285661024 is about 658.5928268415.

The spelling of 285661024 in words is "two hundred eighty-five million, six hundred sixty-one thousand, twenty-four".