215848480 has 24 divisors (see below), whose sum is σ = 509942412. Its totient is φ = 86339328.

The previous prime is 215848471. The next prime is 215848483. The reversal of 215848480 is 84848512.

It can be written as a sum of positive squares in 2 ways, for example, as 204261264 + 11587216 = 14292^2 + 3404^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (215848483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674367 + ... + 674686.

Almost surely, 2^215848480 is an apocalyptic number.

215848480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215848480 is an abundant number, since it is smaller than the sum of its proper divisors (294093932).

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

215848480 is a wasteful number, since it uses less digits than its factorization.

215848480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349068 (or 1349060 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 40.

The square root of 215848480 is about 14691.7827372991. The cubic root of 215848480 is about 599.8596708858.

The spelling of 215848480 in words is "two hundred fifteen million, eight hundred forty-eight thousand, four hundred eighty".