215024330 has 32 divisors (see below), whose sum is σ = 431386560. Its totient is φ = 76688640.

The previous prime is 215024321. The next prime is 215024351. The reversal of 215024330 is 33420512.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30056 + ... + 36515.

It is an arithmetic number, because the mean of its divisors is an integer number (13480830).

Almost surely, 2^215024330 is an apocalyptic number.

215024330 is an abundant number, since it is smaller than the sum of its proper divisors (216362230).

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

215024330 is a wasteful number, since it uses less digits than its factorization.

215024330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66614.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 215024330 is about 14663.7079212592. The cubic root of 215024330 is about 599.0952382145.

Adding to 215024330 its reverse (33420512), we get a palindrome (248444842).

The spelling of 215024330 in words is "two hundred fifteen million, twenty-four thousand, three hundred thirty".