216049835 has 16 divisors (see below), whose sum is σ = 265334400. Its totient is φ = 168806016.

The previous prime is 216049829. The next prime is 216049837. The reversal of 216049835 is 538940612.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 216049835 - 2²² = 211855531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216049837) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 194261 + ... + 195369.

It is an arithmetic number, because the mean of its divisors is an integer number (16583400).

Almost surely, 2^216049835 is an apocalyptic number.

216049835 is a deficient number, since it is larger than the sum of its proper divisors (49284565).

216049835 is a wasteful number, since it uses less digits than its factorization.

216049835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 216049835 is about 14698.6337800491. The cubic root of 216049835 is about 600.0461399703.

The spelling of 216049835 in words is "two hundred sixteen million, forty-nine thousand, eight hundred thirty-five".