285273030 has 192 divisors, whose sum is σ = 853244928. Its totient is φ = 59754240.

The previous prime is 285273019. The next prime is 285273031. The reversal of 285273030 is 30372582.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285273031) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4017895 + ... + 4017965.

It is an arithmetic number, because the mean of its divisors is an integer number (4443984).

Almost surely, 2^285273030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285273030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426622464).

285273030 is an abundant number, since it is smaller than the sum of its proper divisors (567971898).

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

285273030 is a wasteful number, since it uses less digits than its factorization.

285273030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 285273030 is about 16890.0275310610. The cubic root of 285273030 is about 658.2945177492.

The spelling of 285273030 in words is "two hundred eighty-five million, two hundred seventy-three thousand, thirty".