215703030 has 32 divisors (see below), whose sum is σ = 519631200. Its totient is φ = 57304832.

The previous prime is 215703017. The next prime is 215703049. The reversal of 215703030 is 30307512.

It is a happy number.

215703030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 215702988 and 215703006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5295 + ... + 21434.

It is an arithmetic number, because the mean of its divisors is an integer number (16238475).

Almost surely, 2^215703030 is an apocalyptic number.

215703030 is an abundant number, since it is smaller than the sum of its proper divisors (303928170).

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

215703030 is a wasteful number, since it uses less digits than its factorization.

215703030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27008.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 215703030 is about 14686.8318571433. The cubic root of 215703030 is about 599.7249016652.

The spelling of 215703030 in words is "two hundred fifteen million, seven hundred three thousand, thirty".