216246006 has 24 divisors (see below), whose sum is σ = 471958344. Its totient is φ = 71555040.

The previous prime is 216245971. The next prime is 216246029. The reversal of 216246006 is 600642612.

It is a happy number.

It is a super-2 number, since 2×216246006² = 93524670221904072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 41380 + ... + 46311.

It is an arithmetic number, because the mean of its divisors is an integer number (19664931).

Almost surely, 2^216246006 is an apocalyptic number.

216246006 is an abundant number, since it is smaller than the sum of its proper divisors (255712338).

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

216246006 is a wasteful number, since it uses less digits than its factorization.

216246006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87836 (or 87833 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 216246006 is about 14705.3053691516. The cubic root of 216246006 is about 600.2276969126.

Adding to 216246006 its reverse (600642612), we get a palindrome (816888618).

The spelling of 216246006 in words is "two hundred sixteen million, two hundred forty-six thousand, six".