28125336 has 32 divisors (see below), whose sum is σ = 70502400. Its totient is φ = 9349920.

The previous prime is 28125329. The next prime is 28125341. The reversal of 28125336 is 63352182.

It is a super-2 number, since 2×28125336² = 1582069050225792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8985 + ... + 11703.

It is an arithmetic number, because the mean of its divisors is an integer number (2203200).

Almost surely, 2^28125336 is an apocalyptic number.

It is an amenable number.

28125336 is an abundant number, since it is smaller than the sum of its proper divisors (42377064).

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

28125336 is a wasteful number, since it uses less digits than its factorization.

28125336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159 (or 3155 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 28125336 is about 5303.3325371883. The cubic root of 28125336 is about 304.1113108078. Note that the first 3 decimals are identical.

The spelling of 28125336 in words is "twenty-eight million, one hundred twenty-five thousand, three hundred thirty-six".