28124010 has 40 divisors (see below), whose sum is σ = 75624516. Its totient is φ = 7499520.

The previous prime is 28123999. The next prime is 28124011. The reversal of 28124010 is 1042182.

It can be written as a sum of positive squares in 2 ways, for example, as 28100601 + 23409 = 5301^2 + 153^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28124011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16551 + ... + 18170.

Almost surely, 2^28124010 is an apocalyptic number.

28124010 is an abundant number, since it is smaller than the sum of its proper divisors (47500506).

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

28124010 is a wasteful number, since it uses less digits than its factorization.

28124010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34740 (or 34731 counting only the distinct ones).

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

The square root of 28124010 is about 5303.2075199826. The cubic root of 28124010 is about 304.1065315116.

Adding to 28124010 its reverse (1042182), we get a palindrome (29166192).

The spelling of 28124010 in words is "twenty-eight million, one hundred twenty-four thousand, ten".