181826042 has 8 divisors (see below), whose sum is σ = 272824032. Its totient is φ = 90884700.

The previous prime is 181826009. The next prime is 181826077. The reversal of 181826042 is 240628181.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 4934 + ... + 19697.

It is an arithmetic number, because the mean of its divisors is an integer number (34103004).

Almost surely, 2^181826042 is an apocalyptic number.

181826042 is a deficient number, since it is larger than the sum of its proper divisors (90997990).

181826042 is a wasteful number, since it uses less digits than its factorization.

181826042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28324.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 181826042 is about 13484.2887094574. The cubic root of 181826042 is about 566.5244985143.

The spelling of 181826042 in words is "one hundred eighty-one million, eight hundred twenty-six thousand, forty-two".