285045048 has 64 divisors (see below), whose sum is σ = 805248000. Its totient is φ = 93400416.

The previous prime is 285045041. The next prime is 285045113. The reversal of 285045048 is 840540582.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285045041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1561 + ... + 23927.

It is an arithmetic number, because the mean of its divisors is an integer number (12582000).

Almost surely, 2^285045048 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 285045048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402624000).

285045048 is an abundant number, since it is smaller than the sum of its proper divisors (520202952).

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

285045048 is a wasteful number, since it uses less digits than its factorization.

285045048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22441 (or 22431 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 285045048 is about 16883.2771700283. The cubic root of 285045048 is about 658.1191076655.

It can be divided in two parts, 28 and 5045048, that added together give a triangular number (5045076 = T₃₁₇₆).

The spelling of 285045048 in words is "two hundred eighty-five million, forty-five thousand, forty-eight".