28883130 has 32 divisors (see below), whose sum is σ = 71712000. Its totient is φ = 7436352.

The previous prime is 28883123. The next prime is 28883131. The reversal of 28883130 is 3138882.

It is a junction number, because it is equal to n+sod(n) for n = 28883091 and 28883100.

It is not an unprimeable number, because it can be changed into a prime (28883131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15730 + ... + 17469.

It is an arithmetic number, because the mean of its divisors is an integer number (2241000).

Almost surely, 2^28883130 is an apocalyptic number.

28883130 is an abundant number, since it is smaller than the sum of its proper divisors (42828870).

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

28883130 is a wasteful number, since it uses less digits than its factorization.

28883130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33238.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 28883130 is about 5374.3027454731. The cubic root of 28883130 is about 306.8184123505.

The spelling of 28883130 in words is "twenty-eight million, eight hundred eighty-three thousand, one hundred thirty".