28301072 has 40 divisors (see below), whose sum is σ = 56460672. Its totient is φ = 13737600.

The previous prime is 28301059. The next prime is 28301081. The reversal of 28301072 is 27010382.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104297 + ... + 104567.

Almost surely, 2^28301072 is an apocalyptic number.

It is an amenable number.

28301072 is a deficient number, since it is larger than the sum of its proper divisors (28159600).

28301072 is a wasteful number, since it uses less digits than its factorization.

28301072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 28301072 is about 5319.8751865058. The cubic root of 28301072 is about 304.7433907218.

The spelling of 28301072 in words is "twenty-eight million, three hundred one thousand, seventy-two".