215228016 has 120 divisors (see below), whose sum is σ = 630053424. Its totient is φ = 71124480.

The previous prime is 215228011. The next prime is 215228023. The reversal of 215228016 is 610822512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215228011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 765796 + ... + 766076.

Almost surely, 2^215228016 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 215228016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315026712).

215228016 is an abundant number, since it is smaller than the sum of its proper divisors (414825408).

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

215228016 is a wasteful number, since it uses less digits than its factorization.

215228016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 215228016 is about 14670.6515192748. The cubic root of 215228016 is about 599.2843467401.

The spelling of 215228016 in words is "two hundred fifteen million, two hundred twenty-eight thousand, sixteen".