216046406 has 16 divisors (see below), whose sum is σ = 338494464. Its totient is φ = 103224264.

The previous prime is 216046399. The next prime is 216046447. The reversal of 216046406 is 604640612.

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 7 ways as a sum of consecutive naturals, for example, 66635 + ... + 69801.

It is an arithmetic number, because the mean of its divisors is an integer number (21155904).

Almost surely, 2^216046406 is an apocalyptic number.

216046406 is a deficient number, since it is larger than the sum of its proper divisors (122448058).

216046406 is a wasteful number, since it uses less digits than its factorization.

216046406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 216046406 is about 14698.5171360923. The cubic root of 216046406 is about 600.0429654417.

The spelling of 216046406 in words is "two hundred sixteen million, forty-six thousand, four hundred six".