285545992 has 32 divisors (see below), whose sum is σ = 542539800. Its totient is φ = 140880384.

The previous prime is 285545969. The next prime is 285546007. The reversal of 285545992 is 299545582.

285545992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 265885636 + 19660356 = 16306^2 + 4434^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275908 + ... + 276940.

Almost surely, 2^285545992 is an apocalyptic number.

It is an amenable number.

285545992 is a deficient number, since it is larger than the sum of its proper divisors (256993808).

285545992 is a wasteful number, since it uses less digits than its factorization.

285545992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465 (or 1461 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 49.

The square root of 285545992 is about 16898.1061660767. The cubic root of 285545992 is about 658.5044127014.

The spelling of 285545992 in words is "two hundred eighty-five million, five hundred forty-five thousand, nine hundred ninety-two".