28545346 has 32 divisors (see below), whose sum is σ = 47806848. Its totient is φ = 12714240.

The previous prime is 28545343. The next prime is 28545347. The reversal of 28545346 is 64354582.

It is not an unprimeable number, because it can be changed into a prime (28545343) 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, 135181 + ... + 135391.

It is an arithmetic number, because the mean of its divisors is an integer number (1493964).

Almost surely, 2^28545346 is an apocalyptic number.

28545346 is a deficient number, since it is larger than the sum of its proper divisors (19261502).

28545346 is a wasteful number, since it uses less digits than its factorization.

28545346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426.

The product of its digits is 115200, while the sum is 37.

The square root of 28545346 is about 5342.7844800254. The cubic root of 28545346 is about 305.6176536612.

The spelling of 28545346 in words is "twenty-eight million, five hundred forty-five thousand, three hundred forty-six".