28115124 has 24 divisors (see below), whose sum is σ = 65745120. Its totient is φ = 9351264.

The previous prime is 28115119. The next prime is 28115137. The reversal of 28115124 is 42151182.

It is a junction number, because it is equal to n+sod(n) for n = 28115094 and 28115103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3807 + ... + 8409.

It is an arithmetic number, because the mean of its divisors is an integer number (2739380).

Almost surely, 2^28115124 is an apocalyptic number.

It is an amenable number.

28115124 is an abundant number, since it is smaller than the sum of its proper divisors (37629996).

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

28115124 is a wasteful number, since it uses less digits than its factorization.

28115124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5119 (or 5117 counting only the distinct ones).

The product of its digits is 640, while the sum is 24.

The square root of 28115124 is about 5302.3696589355. The cubic root of 28115124 is about 304.0744998621.

The spelling of 28115124 in words is "twenty-eight million, one hundred fifteen thousand, one hundred twenty-four".