182820972 has 12 divisors (see below), whose sum is σ = 426582296. Its totient is φ = 60940320.

The previous prime is 182820971. The next prime is 182820977. The reversal of 182820972 is 279028281.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 182820972.

It is not an unprimeable number, because it can be changed into a prime (182820971) 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 3 ways as a sum of consecutive naturals, for example, 7617529 + ... + 7617552.

Almost surely, 2^182820972 is an apocalyptic number.

182820972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

182820972 is an abundant number, since it is smaller than the sum of its proper divisors (243761324).

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

182820972 is a wasteful number, since it uses less digits than its factorization.

182820972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15235088 (or 15235086 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 182820972 is about 13521.1305740312. The cubic root of 182820972 is about 567.5559372240. Note that the first 3 decimals are identical.

It can be divided in two parts, 1828209 and 72, that added together give a palindrome (1828281).

The spelling of 182820972 in words is "one hundred eighty-two million, eight hundred twenty thousand, nine hundred seventy-two".