28603128 has 48 divisors (see below), whose sum is σ = 72798120. Its totient is φ = 9365056.

The previous prime is 28603123. The next prime is 28603153. The reversal of 28603128 is 82130682.

It is a junction number, because it is equal to n+sod(n) for n = 28603095 and 28603104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28603123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165250 + ... + 165422.

Almost surely, 2^28603128 is an apocalyptic number.

It is an amenable number.

28603128 is an abundant number, since it is smaller than the sum of its proper divisors (44194992).

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

28603128 is a wasteful number, since it uses less digits than its factorization.

28603128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 28603128 is about 5348.1892262709. The cubic root of 28603128 is about 305.8237269184.

The spelling of 28603128 in words is "twenty-eight million, six hundred three thousand, one hundred twenty-eight".