28454 has 8 divisors (see below), whose sum is σ = 43848. Its totient is φ = 13840.

The previous prime is 28447. The next prime is 28463. The reversal of 28454 is 45482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92 + ... + 255.

It is an arithmetic number, because the mean of its divisors is an integer number (5481).

2²⁸⁴⁵⁴ is an apocalyptic number.

28454 is a deficient number, since it is larger than the sum of its proper divisors (15394).

28454 is a wasteful number, since it uses less digits than its factorization.

28454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390.

The product of its digits is 1280, while the sum is 23.

The square root of 28454 is about 168.6831349009. The cubic root of 28454 is about 30.5291309960.

The spelling of 28454 in words is "twenty-eight thousand, four hundred fifty-four".