28125036 has 24 divisors (see below), whose sum is σ = 72917040. Its totient is φ = 9374976.

The previous prime is 28125023. The next prime is 28125043. The reversal of 28125036 is 63052182.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 130101 + ... + 130316.

It is an arithmetic number, because the mean of its divisors is an integer number (3038210).

Almost surely, 2^28125036 is an apocalyptic number.

It is an amenable number.

28125036 is an abundant number, since it is smaller than the sum of its proper divisors (44792004).

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

28125036 is a wasteful number, since it uses less digits than its factorization.

28125036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260430 (or 260422 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 28125036 is about 5303.3042530106. The cubic root of 28125036 is about 304.1102295323.

The spelling of 28125036 in words is "twenty-eight million, one hundred twenty-five thousand, thirty-six".