282638 has 4 divisors (see below), whose sum is σ = 423960. Its totient is φ = 141318.

The previous prime is 282617. The next prime is 282661. The reversal of 282638 is 836282.

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

It is a self number, because there is not a number n which added to its sum of digits gives 282638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70658 + ... + 70661.

It is an arithmetic number, because the mean of its divisors is an integer number (105990).

2²⁸²⁶³⁸ is an apocalyptic number.

282638 is a deficient number, since it is larger than the sum of its proper divisors (141322).

282638 is a wasteful number, since it uses less digits than its factorization.

282638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141321.

The product of its digits is 4608, while the sum is 29.

The square root of 282638 is about 531.6370942664. The cubic root of 282638 is about 65.6261384534.

The spelling of 282638 in words is "two hundred eighty-two thousand, six hundred thirty-eight".