215480330 has 64 divisors (see below), whose sum is σ = 458922240. Its totient is φ = 72078336.

The previous prime is 215480227. The next prime is 215480333. The reversal of 215480330 is 33084512.

215480330 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 (26).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 215480330.

It is not an unprimeable number, because it can be changed into a prime (215480333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54914 + ... + 58706.

It is an arithmetic number, because the mean of its divisors is an integer number (7170660).

Almost surely, 2^215480330 is an apocalyptic number.

215480330 is an abundant number, since it is smaller than the sum of its proper divisors (243441910).

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

215480330 is a wasteful number, since it uses less digits than its factorization.

215480330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 215480330 is about 14679.2482777559. The cubic root of 215480330 is about 599.5184376737.

The spelling of 215480330 in words is "two hundred fifteen million, four hundred eighty thousand, three hundred thirty".