221744030 has 8 divisors (see below), whose sum is σ = 399139272. Its totient is φ = 88697608.

The previous prime is 221744027. The next prime is 221744051. The reversal of 221744030 is 30447122.

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

It is a junction number, because it is equal to n+sod(n) for n = 221743987 and 221744005.

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 3 ways as a sum of consecutive naturals, for example, 11087192 + ... + 11087211.

It is an arithmetic number, because the mean of its divisors is an integer number (49892409).

Almost surely, 2^221744030 is an apocalyptic number.

221744030 is a deficient number, since it is larger than the sum of its proper divisors (177395242).

221744030 is a wasteful number, since it uses less digits than its factorization.

221744030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22174410.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 221744030 is about 14891.0721575043. The cubic root of 221744030 is about 605.2720857994.

The spelling of 221744030 in words is "two hundred twenty-one million, seven hundred forty-four thousand, thirty".