215238030 has 32 divisors (see below), whose sum is σ = 590367744. Its totient is φ = 49197216.

The previous prime is 215238017. The next prime is 215238041. The reversal of 215238030 is 30832512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512262 + ... + 512681.

It is an arithmetic number, because the mean of its divisors is an integer number (18448992).

Almost surely, 2^215238030 is an apocalyptic number.

215238030 is an abundant number, since it is smaller than the sum of its proper divisors (375129714).

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

215238030 is a wasteful number, since it uses less digits than its factorization.

215238030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024960.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 215238030 is about 14670.9928089410. The cubic root of 215238030 is about 599.2936409768.

The spelling of 215238030 in words is "two hundred fifteen million, two hundred thirty-eight thousand, thirty".