216248582 has 8 divisors (see below), whose sum is σ = 353861352. Its totient is φ = 98294800.

The previous prime is 216248581. The next prime is 216248611. The reversal of 216248582 is 285842612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216248581) 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 3 ways as a sum of consecutive naturals, for example, 4914719 + ... + 4914762.

It is an arithmetic number, because the mean of its divisors is an integer number (44232669).

Almost surely, 2^216248582 is an apocalyptic number.

216248582 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

216248582 is a deficient number, since it is larger than the sum of its proper divisors (137612770).

216248582 is a wasteful number, since it uses less digits than its factorization.

216248582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9829494.

The product of its digits is 61440, while the sum is 38.

The square root of 216248582 is about 14705.3929563273. The cubic root of 216248582 is about 600.2300802790.

The spelling of 216248582 in words is "two hundred sixteen million, two hundred forty-eight thousand, five hundred eighty-two".