181304244 has 144 divisors (see below), whose sum is σ = 536180736. Its totient is φ = 53071200.

The previous prime is 181304231. The next prime is 181304309. The reversal of 181304244 is 442403181.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 331179 + ... + 331725.

Almost surely, 2^181304244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181304244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268090368).

181304244 is an abundant number, since it is smaller than the sum of its proper divisors (354876492).

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

181304244 is a wasteful number, since it uses less digits than its factorization.

181304244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 181304244 is about 13464.9264387148. The cubic root of 181304244 is about 565.9820485677.

The spelling of 181304244 in words is "one hundred eighty-one million, three hundred four thousand, two hundred forty-four".