23285128 has 8 divisors (see below), whose sum is σ = 43659630. Its totient is φ = 11642560.

The previous prime is 23285111. The next prime is 23285137. The reversal of 23285128 is 82158232.

It can be written as a sum of positive squares in only one way, i.e., 14152644 + 9132484 = 3762^2 + 3022^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 23285128.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1455313 + ... + 1455328.

Almost surely, 2^23285128 is an apocalyptic number.

It is an amenable number.

23285128 is a deficient number, since it is larger than the sum of its proper divisors (20374502).

23285128 is a wasteful number, since it uses less digits than its factorization.

23285128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910647 (or 2910643 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 23285128 is about 4825.4666095622. The cubic root of 23285128 is about 285.5570432873.

The spelling of 23285128 in words is "twenty-three million, two hundred eighty-five thousand, one hundred twenty-eight".