221908848 has 60 divisors (see below), whose sum is σ = 666865800. Its totient is φ = 63401856.

The previous prime is 221908823. The next prime is 221908859. The reversal of 221908848 is 848809122.

221908848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44823 + ... + 49526.

It is an arithmetic number, because the mean of its divisors is an integer number (11114430).

Almost surely, 2^221908848 is an apocalyptic number.

221908848 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

221908848 is an abundant number, since it is smaller than the sum of its proper divisors (444956952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221908848 is a wasteful number, since it uses less digits than its factorization.

221908848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94374 (or 94361 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 221908848 is about 14896.6052508617. The cubic root of 221908848 is about 605.4220109606.

The spelling of 221908848 in words is "two hundred twenty-one million, nine hundred eight thousand, eight hundred forty-eight".