7730130 has 16 divisors (see below), whose sum is σ = 18552384. Its totient is φ = 2061360.

The previous prime is 7730123. The next prime is 7730147. The reversal of 7730130 is 310377.

It is a junction number, because it is equal to n+sod(n) for n = 7730097 and 7730106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128806 + ... + 128865.

It is an arithmetic number, because the mean of its divisors is an integer number (1159524).

Almost surely, 2^7730130 is an apocalyptic number.

7730130 is an abundant number, since it is smaller than the sum of its proper divisors (10822254).

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

7730130 is a wasteful number, since it uses less digits than its factorization.

7730130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257681.

The product of its (nonzero) digits is 441, while the sum is 21.

The square root of 7730130 is about 2780.3111336683. The cubic root of 7730130 is about 197.7253103494.

The spelling of 7730130 in words is "seven million, seven hundred thirty thousand, one hundred thirty".