28248429 has 16 divisors (see below), whose sum is σ = 41765184. Its totient is φ = 16838400.

The previous prime is 28248419. The next prime is 28248443. The reversal of 28248429 is 92484282.

It is not a de Polignac number, because 28248429 - 2⁵ = 28248397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28248419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5004 + ... + 9029.

It is an arithmetic number, because the mean of its divisors is an integer number (2610324).

Almost surely, 2^28248429 is an apocalyptic number.

It is an amenable number.

28248429 is a deficient number, since it is larger than the sum of its proper divisors (13516755).

28248429 is a wasteful number, since it uses less digits than its factorization.

28248429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14108.

The product of its digits is 73728, while the sum is 39.

The square root of 28248429 is about 5314.9251170642. The cubic root of 28248429 is about 304.5543217518.

The spelling of 28248429 in words is "twenty-eight million, two hundred forty-eight thousand, four hundred twenty-nine".