282257988 has 12 divisors (see below), whose sum is σ = 658602000. Its totient is φ = 94085992.

The previous prime is 282257959. The next prime is 282257993. The reversal of 282257988 is 889752282.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 282257988.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11760738 + ... + 11760761.

It is an arithmetic number, because the mean of its divisors is an integer number (54883500).

Almost surely, 2^282257988 is an apocalyptic number.

It is an amenable number.

282257988 is an abundant number, since it is smaller than the sum of its proper divisors (376344012).

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

282257988 is a wasteful number, since it uses less digits than its factorization.

282257988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23521506 (or 23521504 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 51.

The square root of 282257988 is about 16800.5353486132. The cubic root of 282257988 is about 655.9671341109.

The spelling of 282257988 in words is "two hundred eighty-two million, two hundred fifty-seven thousand, nine hundred eighty-eight".