6130728 has 40 divisors (see below), whose sum is σ = 17173530. Its totient is φ = 2043360.

The previous prime is 6130717. The next prime is 6130739. The reversal of 6130728 is 8270316.

It is an interprime number because it is at equal distance from previous prime (6130717) and next prime (6130739).

It can be written as a sum of positive squares in only one way, i.e., 4588164 + 1542564 = 2142^2 + 1242^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4083 + ... + 5378.

Almost surely, 2^6130728 is an apocalyptic number.

It is an amenable number.

6130728 is an abundant number, since it is smaller than the sum of its proper divisors (11042802).

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

6130728 is a wasteful number, since it uses less digits than its factorization.

6130728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9479 (or 9466 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 6130728 is about 2476.0306944786. The cubic root of 6130728 is about 183.0223031135.

The spelling of 6130728 in words is "six million, one hundred thirty thousand, seven hundred twenty-eight".