28560454 has 8 divisors (see below), whose sum is σ = 46136160. Its totient is φ = 13181736.

The previous prime is 28560449. The next prime is 28560463. The reversal of 28560454 is 45406582.

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

It is a super-2 number, since 2×28560454² = 1631399065372232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549214 + ... + 549265.

It is an arithmetic number, because the mean of its divisors is an integer number (5767020).

Almost surely, 2^28560454 is an apocalyptic number.

28560454 is a deficient number, since it is larger than the sum of its proper divisors (17575706).

28560454 is a wasteful number, since it uses less digits than its factorization.

28560454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098494.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 28560454 is about 5344.1981624936. The cubic root of 28560454 is about 305.6715615401.

The spelling of 28560454 in words is "twenty-eight million, five hundred sixty thousand, four hundred fifty-four".