215448960 has 64 divisors (see below), whose sum is σ = 686749680. Its totient is φ = 57452544.

The previous prime is 215448953. The next prime is 215448971. The reversal of 215448960 is 69844512.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54187 + ... + 58026.

Almost surely, 2^215448960 is an apocalyptic number.

215448960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215448960 is an abundant number, since it is smaller than the sum of its proper divisors (471300720).

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

215448960 is a wasteful number, since it uses less digits than its factorization.

215448960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112235 (or 112223 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 215448960 is about 14678.1797236578. The cubic root of 215448960 is about 599.4893432839.

The spelling of 215448960 in words is "two hundred fifteen million, four hundred forty-eight thousand, nine hundred sixty".