216414605 has 16 divisors (see below), whose sum is σ = 290219328. Its totient is φ = 153552000.

The previous prime is 216414599. The next prime is 216414643. The reversal of 216414605 is 506414612.

It is not a de Polignac number, because 216414605 - 2⁴ = 216414589 is a prime.

It is a Duffinian number.

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, 45731 + ... + 50240.

It is an arithmetic number, because the mean of its divisors is an integer number (18138708).

Almost surely, 2^216414605 is an apocalyptic number.

It is an amenable number.

216414605 is a deficient number, since it is larger than the sum of its proper divisors (73804723).

216414605 is a wasteful number, since it uses less digits than its factorization.

216414605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96028.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 216414605 is about 14711.0368431324. The cubic root of 216414605 is about 600.3836481564.

The spelling of 216414605 in words is "two hundred sixteen million, four hundred fourteen thousand, six hundred five".