282021020 has 24 divisors (see below), whose sum is σ = 594161568. Its totient is φ = 112443200.

The previous prime is 282021013. The next prime is 282021029. The reversal of 282021020 is 20120282.

It is a self number, because there is not a number n which added to its sum of digits gives 282021020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (282021029) 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, 16451 + ... + 28890.

It is an arithmetic number, because the mean of its divisors is an integer number (24756732).

Almost surely, 2^282021020 is an apocalyptic number.

282021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

282021020 is an abundant number, since it is smaller than the sum of its proper divisors (312140548).

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

282021020 is a wasteful number, since it uses less digits than its factorization.

282021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45661 (or 45659 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 282021020 is about 16793.4814734765. The cubic root of 282021020 is about 655.7835116246.

The spelling of 282021020 in words is "two hundred eighty-two million, twenty-one thousand, twenty".