285009054 has 64 divisors (see below), whose sum is σ = 652935168. Its totient is φ = 82095200.

The previous prime is 285009041. The next prime is 285009059. The reversal of 285009054 is 450900582.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285009059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289447 + ... + 290429.

It is an arithmetic number, because the mean of its divisors is an integer number (10202112).

Almost surely, 2^285009054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285009054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326467584).

285009054 is an abundant number, since it is smaller than the sum of its proper divisors (367926114).

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

285009054 is a wasteful number, since it uses less digits than its factorization.

285009054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 285009054 is about 16882.2111703414. The cubic root of 285009054 is about 658.0914052182.

The spelling of 285009054 in words is "two hundred eighty-five million, nine thousand, fifty-four".