75728130 has 32 divisors (see below), whose sum is σ = 182343744. Its totient is φ = 20127936.

The previous prime is 75728123. The next prime is 75728131. The reversal of 75728130 is 3182757.

It is a junction number, because it is equal to n+sod(n) for n = 75728091 and 75728100.

It is not an unprimeable number, because it can be changed into a prime (75728131) 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, 5529 + ... + 13491.

It is an arithmetic number, because the mean of its divisors is an integer number (5698242).

Almost surely, 2^75728130 is an apocalyptic number.

75728130 is an abundant number, since it is smaller than the sum of its proper divisors (106615614).

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

75728130 is a wasteful number, since it uses less digits than its factorization.

75728130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8290.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 75728130 is about 8702.1911033946. The cubic root of 75728130 is about 423.0766701503.

The spelling of 75728130 in words is "seventy-five million, seven hundred twenty-eight thousand, one hundred thirty".