309628130 has 16 divisors (see below), whose sum is σ = 636949440. Its totient is φ = 106158192.

The previous prime is 309628091. The next prime is 309628177. The reversal of 309628130 is 31826903.

It is an unprimeable number.

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, 2211560 + ... + 2211699.

It is an arithmetic number, because the mean of its divisors is an integer number (39809340).

Almost surely, 2^309628130 is an apocalyptic number.

309628130 is an abundant number, since it is smaller than the sum of its proper divisors (327321310).

309628130 is a wasteful number, since it uses less digits than its factorization.

309628130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423273.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 309628130 is about 17596.2532943806. The cubic root of 309628130 is about 676.5192155548.

The spelling of 309628130 in words is "three hundred nine million, six hundred twenty-eight thousand, one hundred thirty".