216434350 has 24 divisors (see below), whose sum is σ = 439166088. Its totient is φ = 78703200.

The previous prime is 216434333. The next prime is 216434353. The reversal of 216434350 is 53434612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216434353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196209 + ... + 197308.

It is an arithmetic number, because the mean of its divisors is an integer number (18298587).

Almost surely, 2^216434350 is an apocalyptic number.

216434350 is an abundant number, since it is smaller than the sum of its proper divisors (222731738).

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

216434350 is a wasteful number, since it uses less digits than its factorization.

216434350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393540 (or 393535 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 216434350 is about 14711.7079226037. The cubic root of 216434350 is about 600.4019066509.

Adding to 216434350 its reverse (53434612), we get a palindrome (269868962).

The spelling of 216434350 in words is "two hundred sixteen million, four hundred thirty-four thousand, three hundred fifty".