309828036 has 48 divisors (see below), whose sum is σ = 841809024. Its totient is φ = 86850816.

The previous prime is 309828019. The next prime is 309828049. The reversal of 309828036 is 630828903.

It is a junction number, because it is equal to n+sod(n) for n = 309827985 and 309828003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30345 + ... + 39248.

It is an arithmetic number, because the mean of its divisors is an integer number (17537688).

Almost surely, 2^309828036 is an apocalyptic number.

It is an amenable number.

309828036 is an abundant number, since it is smaller than the sum of its proper divisors (531980988).

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

309828036 is a wasteful number, since it uses less digits than its factorization.

309828036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69660 (or 69658 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 309828036 is about 17601.9327347880. The cubic root of 309828036 is about 676.6647785086.

The spelling of 309828036 in words is "three hundred nine million, eight hundred twenty-eight thousand, thirty-six".