221848838 has 8 divisors (see below), whose sum is σ = 333266832. Its totient is φ = 110759896.

The previous prime is 221848813. The next prime is 221848867. The reversal of 221848838 is 838848122.

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

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, 80570 + ... + 83277.

It is an arithmetic number, because the mean of its divisors is an integer number (41658354).

Almost surely, 2^221848838 is an apocalyptic number.

221848838 is a deficient number, since it is larger than the sum of its proper divisors (111417994).

221848838 is a wasteful number, since it uses less digits than its factorization.

221848838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164526.

The product of its digits is 196608, while the sum is 44.

The square root of 221848838 is about 14894.5908973694. The cubic root of 221848838 is about 605.3674320187.

The spelling of 221848838 in words is "two hundred twenty-one million, eight hundred forty-eight thousand, eight hundred thirty-eight".