181843968 has 96 divisors (see below), whose sum is σ = 513611280. Its totient is φ = 57016320.

The previous prime is 181843967. The next prime is 181843973. The reversal of 181843968 is 869348181.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181843967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103578 + ... + 105318.

Almost surely, 2^181843968 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 181843968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256805640).

181843968 is an abundant number, since it is smaller than the sum of its proper divisors (331767312).

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

181843968 is a wasteful number, since it uses less digits than its factorization.

181843968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783 (or 1763 counting only the distinct ones).

The product of its digits is 331776, while the sum is 48.

The square root of 181843968 is about 13484.9533925780. The cubic root of 181843968 is about 566.5431155476.

The spelling of 181843968 in words is "one hundred eighty-one million, eight hundred forty-three thousand, nine hundred sixty-eight".