215005330 has 32 divisors (see below), whose sum is σ = 408188160. Its totient is φ = 81313920.

The previous prime is 215005327. The next prime is 215005363. The reversal of 215005330 is 33500512.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 215005298 and 215005307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143847 + ... + 145333.

It is an arithmetic number, because the mean of its divisors is an integer number (12755880).

Almost surely, 2^215005330 is an apocalyptic number.

215005330 is a deficient number, since it is larger than the sum of its proper divisors (193182830).

215005330 is a wasteful number, since it uses less digits than its factorization.

215005330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 215005330 is about 14663.0600489802. The cubic root of 215005330 is about 599.0775919248.

Adding to 215005330 its reverse (33500512), we get a palindrome (248505842).

The spelling of 215005330 in words is "two hundred fifteen million, five thousand, three hundred thirty".