221935248 has 40 divisors (see below), whose sum is σ = 637037600. Its totient is φ = 73978272.

The previous prime is 221935243. The next prime is 221935267. The reversal of 221935248 is 842539122.

It is a happy number.

221935248 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 (36).

It is not an unprimeable number, because it can be changed into a prime (221935243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256438 + ... + 257301.

It is an arithmetic number, because the mean of its divisors is an integer number (15925940).

Almost surely, 2^221935248 is an apocalyptic number.

It is an amenable number.

221935248 is an abundant number, since it is smaller than the sum of its proper divisors (415102352).

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

221935248 is a wasteful number, since it uses less digits than its factorization.

221935248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513756 (or 513744 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 221935248 is about 14897.4913324358. The cubic root of 221935248 is about 605.4460185767.

The spelling of 221935248 in words is "two hundred twenty-one million, nine hundred thirty-five thousand, two hundred forty-eight".