28325045 has 16 divisors (see below), whose sum is σ = 39485568. Its totient is φ = 19103040.

The previous prime is 28325027. The next prime is 28325053. The reversal of 28325045 is 54052382.

It is not a de Polignac number, because 28325045 - 2⁶ = 28324981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28324999 and 28325017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4499 + ... + 8768.

It is an arithmetic number, because the mean of its divisors is an integer number (2467848).

Almost surely, 2^28325045 is an apocalyptic number.

It is an amenable number.

28325045 is a deficient number, since it is larger than the sum of its proper divisors (11160523).

28325045 is a wasteful number, since it uses less digits than its factorization.

28325045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13340.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 28325045 is about 5322.1278639281. The cubic root of 28325045 is about 304.8294128047.

The spelling of 28325045 in words is "twenty-eight million, three hundred twenty-five thousand, forty-five".