285034770 has 144 divisors (see below), whose sum is σ = 810231552. Its totient is φ = 69439680.

The previous prime is 285034759. The next prime is 285034781. The reversal of 285034770 is 77430582.

It is an interprime number because it is at equal distance from previous prime (285034759) and next prime (285034781).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1007049 + ... + 1007331.

It is an arithmetic number, because the mean of its divisors is an integer number (5626608).

Almost surely, 2^285034770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285034770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405115776).

285034770 is an abundant number, since it is smaller than the sum of its proper divisors (525196782).

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

285034770 is a wasteful number, since it uses less digits than its factorization.

285034770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 285034770 is about 16882.9727832512. The cubic root of 285034770 is about 658.1111975363. Note that the first 4 decimals are identical.

The spelling of 285034770 in words is "two hundred eighty-five million, thirty-four thousand, seven hundred seventy".