285436938 has 16 divisors (see below), whose sum is σ = 572101920. Its totient is φ = 94940976.

The previous prime is 285436927. The next prime is 285436939. The reversal of 285436938 is 839634582.

It is not an unprimeable number, because it can be changed into a prime (285436939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48133 + ... + 53736.

It is an arithmetic number, because the mean of its divisors is an integer number (35756370).

Almost surely, 2^285436938 is an apocalyptic number.

285436938 is an abundant number, since it is smaller than the sum of its proper divisors (286664982).

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

285436938 is a wasteful number, since it uses less digits than its factorization.

285436938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102341.

The product of its digits is 1244160, while the sum is 48.

The square root of 285436938 is about 16894.8790466224. The cubic root of 285436938 is about 658.4205713516.

The spelling of 285436938 in words is "two hundred eighty-five million, four hundred thirty-six thousand, nine hundred thirty-eight".