222848640 has 192 divisors, whose sum is σ = 879615360. Its totient is φ = 50927616.

The previous prime is 222848627. The next prime is 222848671. The reversal of 222848640 is 46848222.

It is a happy number.

222848640 is a `hidden beast` number, since 2 + 2 + 2 + 8 + 4 + 8 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 222848595 and 222848604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37557 + ... + 43083.

It is an arithmetic number, because the mean of its divisors is an integer number (4581330).

Almost surely, 2^222848640 is an apocalyptic number.

222848640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222848640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439807680).

222848640 is an abundant number, since it is smaller than the sum of its proper divisors (656766720).

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

222848640 is a wasteful number, since it uses less digits than its factorization.

222848640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559 (or 5544 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 222848640 is about 14928.1157551782. The cubic root of 222848640 is about 606.2754686576.

The spelling of 222848640 in words is "two hundred twenty-two million, eight hundred forty-eight thousand, six hundred forty".