285743130 has 32 divisors (see below), whose sum is σ = 686232000. Its totient is φ = 76148352.

The previous prime is 285743113. The next prime is 285743197. The reversal of 285743130 is 31347582.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 285743091 and 285743100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79206 + ... + 82734.

It is an arithmetic number, because the mean of its divisors is an integer number (21444750).

Almost surely, 2^285743130 is an apocalyptic number.

285743130 is an abundant number, since it is smaller than the sum of its proper divisors (400488870).

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

285743130 is a wasteful number, since it uses less digits than its factorization.

285743130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6238.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 285743130 is about 16903.9382985149. The cubic root of 285743130 is about 658.6559193861.

The spelling of 285743130 in words is "two hundred eighty-five million, seven hundred forty-three thousand, one hundred thirty".