309828130 has 16 divisors (see below), whose sum is σ = 562904640. Its totient is φ = 122772592.

The previous prime is 309828119. The next prime is 309828131. The reversal of 309828130 is 31828903.

It is not an unprimeable number, because it can be changed into a prime (309828131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143710 + ... + 145849.

It is an arithmetic number, because the mean of its divisors is an integer number (35181540).

Almost surely, 2^309828130 is an apocalyptic number.

309828130 is a deficient number, since it is larger than the sum of its proper divisors (253076510).

309828130 is a wasteful number, since it uses less digits than its factorization.

309828130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289673.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 309828130 is about 17601.9354049491. The cubic root of 309828130 is about 676.6648469406.

The spelling of 309828130 in words is "three hundred nine million, eight hundred twenty-eight thousand, one hundred thirty".