215336416 has 72 divisors (see below), whose sum is σ = 467498304. Its totient is φ = 97198080.

The previous prime is 215336413. The next prime is 215336423. The reversal of 215336416 is 614633512.

215336416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215336413) 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, 1905576 + ... + 1905688.

It is an arithmetic number, because the mean of its divisors is an integer number (6493032).

Almost surely, 2^215336416 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 215336416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233749152).

215336416 is an abundant number, since it is smaller than the sum of its proper divisors (252161888).

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

215336416 is a wasteful number, since it uses less digits than its factorization.

215336416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 163 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 215336416 is about 14674.3455049961. The cubic root of 215336416 is about 599.3849400880.

Adding to 215336416 its reverse (614633512), we get a palindrome (829969928).

The spelling of 215336416 in words is "two hundred fifteen million, three hundred thirty-six thousand, four hundred sixteen".