28125414 has 16 divisors (see below), whose sum is σ = 62501040. Its totient is φ = 9375120.

The previous prime is 28125407. The next prime is 28125421. The reversal of 28125414 is 41452182.

It is an interprime number because it is at equal distance from previous prime (28125407) and next prime (28125421).

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 260367 + ... + 260474.

It is an arithmetic number, because the mean of its divisors is an integer number (3906315).

Almost surely, 2^28125414 is an apocalyptic number.

28125414 is an abundant number, since it is smaller than the sum of its proper divisors (34375626).

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

28125414 is a wasteful number, since it uses less digits than its factorization.

28125414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520852 (or 520846 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 28125414 is about 5303.3398910498. The cubic root of 28125414 is about 304.1115919382. Note that the first 3 decimals are identical.

Adding to 28125414 its reverse (41452182), we get a palindrome (69577596).

The spelling of 28125414 in words is "twenty-eight million, one hundred twenty-five thousand, four hundred fourteen".