28224454 has 8 divisors (see below), whose sum is σ = 44827128. Its totient is φ = 13282080.

The previous prime is 28224433. The next prime is 28224529. The reversal of 28224454 is 45442282.

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

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, 415032 + ... + 415099.

It is an arithmetic number, because the mean of its divisors is an integer number (5603391).

Almost surely, 2^28224454 is an apocalyptic number.

28224454 is a deficient number, since it is larger than the sum of its proper divisors (16602674).

28224454 is a wasteful number, since it uses less digits than its factorization.

28224454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830150.

The product of its digits is 20480, while the sum is 31.

The square root of 28224454 is about 5312.6691973056. The cubic root of 28224454 is about 304.4681369409.

The spelling of 28224454 in words is "twenty-eight million, two hundred twenty-four thousand, four hundred fifty-four".