28800130 has 16 divisors (see below), whose sum is σ = 51932664. Its totient is φ = 11499520.

The previous prime is 28800077. The next prime is 28800131. The reversal of 28800130 is 3100882.

It can be written as a sum of positive squares in 4 ways, for example, as 28291761 + 508369 = 5319^2 + 713^2 .

It is not an unprimeable number, because it can be changed into a prime (28800131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4164 + ... + 8656.

Almost surely, 2^28800130 is an apocalyptic number.

28800130 is a deficient number, since it is larger than the sum of its proper divisors (23132534).

28800130 is a wasteful number, since it uses less digits than its factorization.

28800130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5141.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 28800130 is about 5366.5752580207. The cubic root of 28800130 is about 306.5242341615.

The spelling of 28800130 in words is "twenty-eight million, eight hundred thousand, one hundred thirty".