28514172 has 24 divisors (see below), whose sum is σ = 68680192. Its totient is φ = 9198000.

The previous prime is 28514149. The next prime is 28514173. The reversal of 28514172 is 27141582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28514173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37954 + ... + 38697.

Almost surely, 2^28514172 is an apocalyptic number.

It is an amenable number.

28514172 is an abundant number, since it is smaller than the sum of its proper divisors (40166020).

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

28514172 is a wasteful number, since it uses less digits than its factorization.

28514172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76689 (or 76687 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 28514172 is about 5339.8662904608. The cubic root of 28514172 is about 305.5063594527.

The spelling of 28514172 in words is "twenty-eight million, five hundred fourteen thousand, one hundred seventy-two".