28468545 has 16 divisors (see below), whose sum is σ = 52056960. Its totient is φ = 13014144.

The previous prime is 28468541. The next prime is 28468553. The reversal of 28468545 is 54586482.

It is not a de Polignac number, because 28468545 - 2² = 28468541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28468497 and 28468506.

It is not an unprimeable number, because it can be changed into a prime (28468541) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 135460 + ... + 135669.

It is an arithmetic number, because the mean of its divisors is an integer number (3253560).

Almost surely, 2^28468545 is an apocalyptic number.

It is an amenable number.

28468545 is a deficient number, since it is larger than the sum of its proper divisors (23588415).

28468545 is a wasteful number, since it uses less digits than its factorization.

28468545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271144.

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

The square root of 28468545 is about 5335.5922820246. The cubic root of 28468545 is about 305.3433202887.

The spelling of 28468545 in words is "twenty-eight million, four hundred sixty-eight thousand, five hundred forty-five".