182021616 has 120 divisors (see below), whose sum is σ = 584962560. Its totient is φ = 51758208.

The previous prime is 182021597. The next prime is 182021617. The reversal of 182021616 is 616120281.

182021616 is a `hidden beast` number, since 1 + 8 + 20 + 21 + 616 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 182021616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (182021617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 361621 + ... + 362123.

It is an arithmetic number, because the mean of its divisors is an integer number (4874688).

Almost surely, 2^182021616 is an apocalyptic number.

182021616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 182021616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292481280).

182021616 is an abundant number, since it is smaller than the sum of its proper divisors (402940944).

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

182021616 is a wasteful number, since it uses less digits than its factorization.

182021616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 182021616 is about 13491.5386817071. The cubic root of 182021616 is about 566.7275456316.

Adding to 182021616 its reverse (616120281), we get a palindrome (798141897).

It can be divided in two parts, 1820 and 21616, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 182021616 in words is "one hundred eighty-two million, twenty-one thousand, six hundred sixteen".