28358130 has 32 divisors (see below), whose sum is σ = 68200704. Its totient is φ = 7546496.

The previous prime is 28358129. The next prime is 28358131. The reversal of 28358130 is 3185382.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28358129) and next prime (28358131).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (28358131) 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, 25159 + ... + 26261.

It is an arithmetic number, because the mean of its divisors is an integer number (2131272).

Almost surely, 2^28358130 is an apocalyptic number.

28358130 is an abundant number, since it is smaller than the sum of its proper divisors (39842574).

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

28358130 is a wasteful number, since it uses less digits than its factorization.

28358130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 28358130 is about 5325.2352060731. The cubic root of 28358130 is about 304.9480517097.

The spelling of 28358130 in words is "twenty-eight million, three hundred fifty-eight thousand, one hundred thirty".