215948672 has 32 divisors (see below), whose sum is σ = 431476320. Its totient is φ = 107656704.

The previous prime is 215948639. The next prime is 215948693. The reversal of 215948672 is 276849512.

It is a happy number.

215948672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44678 + ... + 49274.

It is an arithmetic number, because the mean of its divisors is an integer number (13483635).

Almost surely, 2^215948672 is an apocalyptic number.

It is an amenable number.

215948672 is a deficient number, since it is larger than the sum of its proper divisors (215527648).

215948672 is an equidigital number, since it uses as much as digits as its factorization.

215948672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4978 (or 4966 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 215948672 is about 14695.1921389276. The cubic root of 215948672 is about 599.9524703091.

The spelling of 215948672 in words is "two hundred fifteen million, nine hundred forty-eight thousand, six hundred seventy-two".