28545364 has 12 divisors (see below), whose sum is σ = 49993524. Its totient is φ = 14261504.

The previous prime is 28545359. The next prime is 28545371. The reversal of 28545364 is 46354582.

It can be written as a sum of positive squares in 2 ways, for example, as 2125764 + 26419600 = 1458^2 + 5140^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6084 + ... + 9700.

It is an arithmetic number, because the mean of its divisors is an integer number (4166127).

Almost surely, 2^28545364 is an apocalyptic number.

It is an amenable number.

28545364 is a deficient number, since it is larger than the sum of its proper divisors (21448160).

28545364 is a wasteful number, since it uses less digits than its factorization.

28545364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5594 (or 5592 counting only the distinct ones).

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

The square root of 28545364 is about 5342.7861645400. The cubic root of 28545364 is about 305.6177178995.

The spelling of 28545364 in words is "twenty-eight million, five hundred forty-five thousand, three hundred sixty-four".