221468486 has 8 divisors (see below), whose sum is σ = 351744120. Its totient is φ = 104220448.

The previous prime is 221468473. The next prime is 221468497. The reversal of 221468486 is 684864122.

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

It is a super-2 number, since 2×221468486² = 98096580582264392, which contains 22 as substring.

It is a congruent number.

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, 3256856 + ... + 3256923.

It is an arithmetic number, because the mean of its divisors is an integer number (43968015).

Almost surely, 2^221468486 is an apocalyptic number.

221468486 is a deficient number, since it is larger than the sum of its proper divisors (130275634).

221468486 is a wasteful number, since it uses less digits than its factorization.

221468486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6513798.

The product of its digits is 147456, while the sum is 41.

The square root of 221468486 is about 14881.8172949408. The cubic root of 221468486 is about 605.0212737550.

The spelling of 221468486 in words is "two hundred twenty-one million, four hundred sixty-eight thousand, four hundred eighty-six".