3102216 has 64 divisors (see below), whose sum is σ = 8541120. Its totient is φ = 933120.

The previous prime is 3102199. The next prime is 3102223. The reversal of 3102216 is 6122013.

It is a super-2 number, since 2×3102216² = 19247488221312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3102195 and 3102204.

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, 18951 + ... + 19113.

It is an arithmetic number, because the mean of its divisors is an integer number (133455).

Almost surely, 2^3102216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3102216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4270560).

3102216 is an abundant number, since it is smaller than the sum of its proper divisors (5438904).

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

3102216 is a wasteful number, since it uses less digits than its factorization.

3102216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3102216 is about 1761.3108754561. The cubic root of 3102216 is about 145.8447088451.

Adding to 3102216 its reverse (6122013), we get a palindrome (9224229).

The spelling of 3102216 in words is "three million, one hundred two thousand, two hundred sixteen".