8021124 has 36 divisors (see below), whose sum is σ = 20493564. Its totient is φ = 2644992.

The previous prime is 8021113. The next prime is 8021129. The reversal of 8021124 is 4211208.

It can be written as a sum of positive squares in 2 ways, for example, as 3686400 + 4334724 = 1920^2 + 2082^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 8021097 and 8021106.

It is not an unprimeable number, because it can be changed into a prime (8021129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2344 + ... + 4640.

Almost surely, 2^8021124 is an apocalyptic number.

It is an amenable number.

8021124 is an abundant number, since it is smaller than the sum of its proper divisors (12472440).

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

8021124 is a wasteful number, since it uses less digits than its factorization.

8021124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404 (or 2399 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 8021124 is about 2832.1588938476. The cubic root of 8021124 is about 200.1758786215.

The spelling of 8021124 in words is "eight million, twenty-one thousand, one hundred twenty-four".