309828050 has 24 divisors (see below), whose sum is σ = 658606656. Its totient is φ = 106226640.

The previous prime is 309828049. The next prime is 309828053. The reversal of 309828050 is 50828903.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 309828050.

It is not an unprimeable number, because it can be changed into a prime (309828053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 442262 + ... + 442961.

It is an arithmetic number, because the mean of its divisors is an integer number (27441944).

Almost surely, 2^309828050 is an apocalyptic number.

309828050 is an abundant number, since it is smaller than the sum of its proper divisors (348778606).

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

309828050 is a wasteful number, since it uses less digits than its factorization.

309828050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885242 (or 885237 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 309828050 is about 17601.9331324716. The cubic root of 309828050 is about 676.6647887006.

The spelling of 309828050 in words is "three hundred nine million, eight hundred twenty-eight thousand, fifty".