305928216 has 96 divisors (see below), whose sum is σ = 919339200. Its totient is φ = 91120320.

The previous prime is 305928197. The next prime is 305928239. The reversal of 305928216 is 612829503.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43455 + ... + 50001.

It is an arithmetic number, because the mean of its divisors is an integer number (9576450).

Almost surely, 2^305928216 is an apocalyptic number.

305928216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305928216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459669600).

305928216 is an abundant number, since it is smaller than the sum of its proper divisors (613410984).

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

305928216 is a wasteful number, since it uses less digits than its factorization.

305928216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6629 (or 6622 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 305928216 is about 17490.8037551166. The cubic root of 305928216 is about 673.8137122489.

The spelling of 305928216 in words is "three hundred five million, nine hundred twenty-eight thousand, two hundred sixteen".