181404968 has 16 divisors (see below), whose sum is σ = 340404660. Its totient is φ = 90630400.

The previous prime is 181404959. The next prime is 181404973. The reversal of 181404968 is 869404181.

It can be written as a sum of positive squares in 2 ways, for example, as 175244644 + 6160324 = 13238^2 + 2482^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2558 + ... + 19218.

Almost surely, 2^181404968 is an apocalyptic number.

It is an amenable number.

181404968 is a deficient number, since it is larger than the sum of its proper divisors (158999692).

181404968 is a wasteful number, since it uses less digits than its factorization.

181404968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18028 (or 18024 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 181404968 is about 13468.6661551915. Note that the first 3 decimals coincide. The cubic root of 181404968 is about 566.0868400513.

The spelling of 181404968 in words is "one hundred eighty-one million, four hundred four thousand, nine hundred sixty-eight".