215572480 has 112 divisors (see below), whose sum is σ = 546536880. Its totient is φ = 81395712.

The previous prime is 215572463. The next prime is 215572501. The reversal of 215572480 is 84275512.

It is a happy number.

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, 778102 + ... + 778378.

Almost surely, 2^215572480 is an apocalyptic number.

215572480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215572480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273268440).

215572480 is an abundant number, since it is smaller than the sum of its proper divisors (330964400).

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

215572480 is an equidigital number, since it uses as much as digits as its factorization.

215572480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 215572480 is about 14682.3867269596. The cubic root of 215572480 is about 599.6038866961.

The spelling of 215572480 in words is "two hundred fifteen million, five hundred seventy-two thousand, four hundred eighty".