182821230 has 144 divisors (see below), whose sum is σ = 532784304. Its totient is φ = 43338240.

The previous prime is 182821217. The next prime is 182821267. The reversal of 182821230 is 32128281.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 182821194 and 182821203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 552165 + ... + 552495.

It is an arithmetic number, because the mean of its divisors is an integer number (3699891).

Almost surely, 2^182821230 is an apocalyptic number.

182821230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 182821230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266392152).

182821230 is an abundant number, since it is smaller than the sum of its proper divisors (349963074).

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

182821230 is a wasteful number, since it uses less digits than its factorization.

182821230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 182821230 is about 13521.1401146501. The cubic root of 182821230 is about 567.5562042053.

The spelling of 182821230 in words is "one hundred eighty-two million, eight hundred twenty-one thousand, two hundred thirty".