182021812 has 12 divisors (see below), whose sum is σ = 364043680. Its totient is φ = 78009336.

The previous prime is 182021803. The next prime is 182021813. The reversal of 182021812 is 218120281.

182021812 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (182021813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3250362 + ... + 3250417.

Almost surely, 2^182021812 is an apocalyptic number.

It is an amenable number.

182021812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

182021812 is a wasteful number, since it uses less digits than its factorization.

182021812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500790 (or 6500788 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 182021812 is about 13491.5459455171. The cubic root of 182021812 is about 566.7277490480.

It can be divided in two parts, 1820 and 21812, that added together give a palindrome (23632).

The spelling of 182021812 in words is "one hundred eighty-two million, twenty-one thousand, eight hundred twelve".