28458546 has 8 divisors (see below), whose sum is σ = 56917104. Its totient is φ = 9486180.

The previous prime is 28458533. The next prime is 28458559. The reversal of 28458546 is 64585482.

It is an interprime number because it is at equal distance from previous prime (28458533) and next prime (28458559).

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

28458546 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28458498 and 28458507.

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, 2371540 + ... + 2371551.

It is an arithmetic number, because the mean of its divisors is an integer number (7114638).

Almost surely, 2^28458546 is an apocalyptic number.

28458546 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28458546 is a wasteful number, since it uses less digits than its factorization.

28458546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4743096.

The product of its digits is 307200, while the sum is 42.

The square root of 28458546 is about 5334.6551903567. The cubic root of 28458546 is about 305.3075675497.

It can be divided in two parts, 2 and 8458546, that added together give a palindrome (8458548).

The spelling of 28458546 in words is "twenty-eight million, four hundred fifty-eight thousand, five hundred forty-six".