285638482 has 4 divisors (see below), whose sum is σ = 428457726. Its totient is φ = 142819240.

The previous prime is 285638473. The next prime is 285638489. The reversal of 285638482 is 284836582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 253478241 + 32160241 = 15921^2 + 5671^2 .

It is not an unprimeable number, because it can be changed into a prime (285638489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71409619 + ... + 71409622.

Almost surely, 2^285638482 is an apocalyptic number.

285638482 is a deficient number, since it is larger than the sum of its proper divisors (142819244).

285638482 is a wasteful number, since it uses less digits than its factorization.

285638482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142819243.

The product of its digits is 737280, while the sum is 46.

The square root of 285638482 is about 16900.8426417146. The cubic root of 285638482 is about 658.5755028237.

The spelling of 285638482 in words is "two hundred eighty-five million, six hundred thirty-eight thousand, four hundred eighty-two".