23128284 has 12 divisors (see below), whose sum is σ = 53966024. Its totient is φ = 7709424.

The previous prime is 23128253. The next prime is 23128307. The reversal of 23128284 is 48282132.

It is a tau number, because it is divible by the number of its divisors (12).

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, 963667 + ... + 963690.

Almost surely, 2^23128284 is an apocalyptic number.

It is an amenable number.

23128284 is an abundant number, since it is smaller than the sum of its proper divisors (30837740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23128284 is a wasteful number, since it uses less digits than its factorization.

23128284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927364 (or 1927362 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 23128284 is about 4809.1874573570. The cubic root of 23128284 is about 284.9144464657.

The spelling of 23128284 in words is "twenty-three million, one hundred twenty-eight thousand, two hundred eighty-four".