182772820 has 24 divisors (see below), whose sum is σ = 388684800. Its totient is φ = 72183072.

The previous prime is 182772809. The next prime is 182772823. The reversal of 182772820 is 28277281.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 182772820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (182772823) 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 7 ways as a sum of consecutive naturals, for example, 56260 + ... + 59419.

It is an arithmetic number, because the mean of its divisors is an integer number (16195200).

Almost surely, 2^182772820 is an apocalyptic number.

182772820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

182772820 is an abundant number, since it is smaller than the sum of its proper divisors (205911980).

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

182772820 is a wasteful number, since it uses less digits than its factorization.

182772820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115767 (or 115765 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 182772820 is about 13519.3498364381. The cubic root of 182772820 is about 567.5061045874.

It can be divided in two parts, 1827 and 72820, that added together give a palindrome (74647).

The spelling of 182772820 in words is "one hundred eighty-two million, seven hundred seventy-two thousand, eight hundred twenty".