221834246 has 12 divisors (see below), whose sum is σ = 337519356. Its totient is φ = 109349940.

The previous prime is 221834213. The next prime is 221834269. The reversal of 221834246 is 642438122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 920 + ... + 21083.

It is an arithmetic number, because the mean of its divisors is an integer number (28126613).

Almost surely, 2^221834246 is an apocalyptic number.

221834246 is a deficient number, since it is larger than the sum of its proper divisors (115685110).

221834246 is an equidigital number, since it uses as much as digits as its factorization.

221834246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22147 (or 22076 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 221834246 is about 14894.1010470589. The cubic root of 221834246 is about 605.3541591444.

The spelling of 221834246 in words is "two hundred twenty-one million, eight hundred thirty-four thousand, two hundred forty-six".