28324454 has 8 divisors (see below), whose sum is σ = 44334000. Its totient is φ = 13546456.

The previous prime is 28324411. The next prime is 28324507. The reversal of 28324454 is 45442382.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28324454.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307829 + ... + 307920.

It is an arithmetic number, because the mean of its divisors is an integer number (5541750).

Almost surely, 2^28324454 is an apocalyptic number.

28324454 is a deficient number, since it is larger than the sum of its proper divisors (16009546).

28324454 is a wasteful number, since it uses less digits than its factorization.

28324454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615774.

The product of its digits is 30720, while the sum is 32.

The square root of 28324454 is about 5322.0723407334. The cubic root of 28324454 is about 304.8272927088.

The spelling of 28324454 in words is "twenty-eight million, three hundred twenty-four thousand, four hundred fifty-four".