28365741 has 32 divisors (see below), whose sum is σ = 46051200. Its totient is φ = 17176320.

The previous prime is 28365731. The next prime is 28365773. The reversal of 28365741 is 14756382.

28365741 is a `hidden beast` number, since 2 + 83 + 6 + 574 + 1 = 666.

It is not a de Polignac number, because 28365741 - 2⁵ = 28365709 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28365696 and 28365705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28365721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12246 + ... + 14376.

It is an arithmetic number, because the mean of its divisors is an integer number (1439100).

Almost surely, 2^28365741 is an apocalyptic number.

It is an amenable number.

28365741 is a deficient number, since it is larger than the sum of its proper divisors (17685459).

28365741 is a wasteful number, since it uses less digits than its factorization.

28365741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186 (or 2180 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 28365741 is about 5325.9497744534. The cubic root of 28365741 is about 304.9753308006.

The spelling of 28365741 in words is "twenty-eight million, three hundred sixty-five thousand, seven hundred forty-one".