216626124 has 96 divisors (see below), whose sum is σ = 608509440. Its totient is φ = 59097600.

The previous prime is 216626119. The next prime is 216626129. The reversal of 216626124 is 421626612.

216626124 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216626119) and next prime (216626129).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 216626091 and 216626100.

It is not an unprimeable number, because it can be changed into a prime (216626129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68817 + ... + 71895.

It is an arithmetic number, because the mean of its divisors is an integer number (6338640).

Almost surely, 2^216626124 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 216626124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304254720).

216626124 is an abundant number, since it is smaller than the sum of its proper divisors (391883316).

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

216626124 is a wasteful number, since it uses less digits than its factorization.

216626124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151 (or 3149 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 216626124 is about 14718.2242135388. The cubic root of 216626124 is about 600.5791851721.

The spelling of 216626124 in words is "two hundred sixteen million, six hundred twenty-six thousand, one hundred twenty-four".