215412480 has 288 divisors, whose sum is σ = 800593920. Its totient is φ = 54743040.

The previous prime is 215412479. The next prime is 215412541. The reversal of 215412480 is 84214512.

215412480 is a `hidden beast` number, since 21 + 541 + 24 + 80 = 666.

215412480 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 (288).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 794745 + ... + 795015.

It is an arithmetic number, because the mean of its divisors is an integer number (2779840).

Almost surely, 2^215412480 is an apocalyptic number.

215412480 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 215412480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400296960).

215412480 is an abundant number, since it is smaller than the sum of its proper divisors (585181440).

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

215412480 is a wasteful number, since it uses less digits than its factorization.

215412480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 215412480 is about 14676.9370101530. The cubic root of 215412480 is about 599.4555060267.

Adding to 215412480 its reverse (84214512), we get a palindrome (299626992).

The spelling of 215412480 in words is "two hundred fifteen million, four hundred twelve thousand, four hundred eighty".