215422260 has 48 divisors (see below), whose sum is σ = 617217216. Its totient is φ = 56109312.

The previous prime is 215422243. The next prime is 215422297. The reversal of 215422260 is 62224512.

It is a happy number.

215422260 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 215422260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39169 + ... + 44328.

It is an arithmetic number, because the mean of its divisors is an integer number (12858692).

Almost surely, 2^215422260 is an apocalyptic number.

215422260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215422260 is an abundant number, since it is smaller than the sum of its proper divisors (401794956).

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

215422260 is a wasteful number, since it uses less digits than its factorization.

215422260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83552 (or 83550 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 215422260 is about 14677.2701821558. The cubic root of 215422260 is about 599.4645779030.

Adding to 215422260 its reverse (62224512), we get a palindrome (277646772).

The spelling of 215422260 in words is "two hundred fifteen million, four hundred twenty-two thousand, two hundred sixty".