215480000 has 70 divisors (see below), whose sum is σ = 534419556. Its totient is φ = 86176000.

The previous prime is 215479997. The next prime is 215480047. The reversal of 215480000 is 84512.

215480000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 37307 + ... + 42693.

Almost surely, 2^215480000 is an apocalyptic number.

215480000 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 215480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267209778).

215480000 is an abundant number, since it is smaller than the sum of its proper divisors (318939556).

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

215480000 is an frugal number, since it uses more digits than its factorization.

215480000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5419 (or 5394 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 215480000 is about 14679.2370373940. The cubic root of 215480000 is about 599.5181316269.

The spelling of 215480000 in words is "two hundred fifteen million, four hundred eighty thousand".