215413260 has 96 divisors (see below), whose sum is σ = 652189440. Its totient is φ = 52939008.

The previous prime is 215413259. The next prime is 215413277. The reversal of 215413260 is 62314512.

215413260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 215413260.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39627 + ... + 44733.

It is an arithmetic number, because the mean of its divisors is an integer number (6793640).

Almost surely, 2^215413260 is an apocalyptic number.

215413260 is a gapful number since it is divisible by the number (20) 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 215413260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326094720).

215413260 is an abundant number, since it is smaller than the sum of its proper divisors (436776180).

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

215413260 is a wasteful number, since it uses less digits than its factorization.

215413260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5175 (or 5173 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 215413260 is about 14676.9635824308. The cubic root of 215413260 is about 599.4562295606.

Adding to 215413260 its reverse (62314512), we get a palindrome (277727772).

The spelling of 215413260 in words is "two hundred fifteen million, four hundred thirteen thousand, two hundred sixty".