182981402000 has 80 divisors (see below), whose sum is σ = 442643780592. Its totient is φ = 73160345600.

The previous prime is 182981401961. The next prime is 182981402003. The reversal of 182981402000 is 204189281.

It can be written as a sum of positive squares in 8 ways, for example, as 67772750224 + 115208651776 = 260332^2 + 339424^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (182981402003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4815074 + ... + 4852926.

Almost surely, 2^182981402000 is an apocalyptic number.

182981402000 is a gapful number since it is divisible by the number (10) 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 182981402000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221321890296).

182981402000 is an abundant number, since it is smaller than the sum of its proper divisors (259662378592).

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

182981402000 is a wasteful number, since it uses less digits than its factorization.

182981402000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40293 (or 40277 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 182981402000 in words is "one hundred eighty-two billion, nine hundred eighty-one million, four hundred two thousand".