215314260 has 96 divisors (see below), whose sum is σ = 690961152. Its totient is φ = 49075200.

The previous prime is 215314259. The next prime is 215314261. The reversal of 215314260 is 62413512.

It is an interprime number because it is at equal distance from previous prime (215314259) and next prime (215314261).

It is a self number, because there is not a number n which added to its sum of digits gives 215314260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215314261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251994 + ... + 252846.

It is an arithmetic number, because the mean of its divisors is an integer number (7197512).

Almost surely, 2^215314260 is an apocalyptic number.

215314260 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 215314260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345480576).

215314260 is an abundant number, since it is smaller than the sum of its proper divisors (475646892).

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

215314260 is a wasteful number, since it uses less digits than its factorization.

215314260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473 (or 1471 counting only the distinct ones).

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

The square root of 215314260 is about 14673.5905626401. The cubic root of 215314260 is about 599.3643824439.

Adding to 215314260 its reverse (62413512), we get a palindrome (277727772).

The spelling of 215314260 in words is "two hundred fifteen million, three hundred fourteen thousand, two hundred sixty".