216674205 has 32 divisors (see below), whose sum is σ = 387002880. Its totient is φ = 102607680.

The previous prime is 216674201. The next prime is 216674243. The reversal of 216674205 is 502476612.

It is not a de Polignac number, because 216674205 - 2² = 216674201 is a prime.

It is a super-2 number, since 2×216674205² = 93895422224764050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216674201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8175 + ... + 22364.

It is an arithmetic number, because the mean of its divisors is an integer number (12093840).

Almost surely, 2^216674205 is an apocalyptic number.

It is an amenable number.

216674205 is a deficient number, since it is larger than the sum of its proper divisors (170328675).

216674205 is a wasteful number, since it uses less digits than its factorization.

216674205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30601.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 216674205 is about 14719.8575061038. The cubic root of 216674205 is about 600.6236155038.

The spelling of 216674205 in words is "two hundred sixteen million, six hundred seventy-four thousand, two hundred five".