215260224 has 28 divisors (see below), whose sum is σ = 569543184. Its totient is φ = 71753344.

The previous prime is 215260217. The next prime is 215260231. The reversal of 215260224 is 422062512.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (215260217) and next prime (215260231).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 215260194 and 215260203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560382 + ... + 560765.

It is an arithmetic number, because the mean of its divisors is an integer number (20340828).

Almost surely, 2^215260224 is an apocalyptic number.

215260224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

215260224 is an abundant number, since it is smaller than the sum of its proper divisors (354282960).

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

215260224 is a wasteful number, since it uses less digits than its factorization.

215260224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121162 (or 1121152 counting only the distinct ones).

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

The square root of 215260224 is about 14671.7491799717. The cubic root of 215260224 is about 599.3142387400.

The spelling of 215260224 in words is "two hundred fifteen million, two hundred sixty thousand, two hundred twenty-four".