216352430 has 32 divisors (see below), whose sum is σ = 468495360. Its totient is φ = 70273440.

The previous prime is 216352349. The next prime is 216352453. The reversal of 216352430 is 34253612.

It is a self number, because there is not a number n which added to its sum of digits gives 216352430.

It is a congruent number.

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, 80006 + ... + 82665.

It is an arithmetic number, because the mean of its divisors is an integer number (14640480).

Almost surely, 2^216352430 is an apocalyptic number.

216352430 is an abundant number, since it is smaller than the sum of its proper divisors (252142930).

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

216352430 is a wasteful number, since it uses less digits than its factorization.

216352430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162704.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 216352430 is about 14708.9234820227. The cubic root of 216352430 is about 600.3261467558.

The spelling of 216352430 in words is "two hundred sixteen million, three hundred fifty-two thousand, four hundred thirty".