305216472 has 64 divisors (see below), whose sum is σ = 836904960. Its totient is φ = 91990400.

The previous prime is 305216413. The next prime is 305216473. The reversal of 305216472 is 274612503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305216473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47398 + ... + 53450.

It is an arithmetic number, because the mean of its divisors is an integer number (13076640).

Almost surely, 2^305216472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305216472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (418452480).

305216472 is an abundant number, since it is smaller than the sum of its proper divisors (531688488).

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

305216472 is a wasteful number, since it uses less digits than its factorization.

305216472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6264 (or 6260 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 305216472 is about 17470.4456726209. The cubic root of 305216472 is about 673.2907624841.

Adding to 305216472 its reverse (274612503), we get a palindrome (579828975).

The spelling of 305216472 in words is "three hundred five million, two hundred sixteen thousand, four hundred seventy-two".