222796640 has 96 divisors (see below), whose sum is σ = 577541664. Its totient is φ = 80547840.

The previous prime is 222796633. The next prime is 222796663. The reversal of 222796640 is 46697222.

It is a happy number.

222796640 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222796594 and 222796603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487292 + ... + 487748.

It is an arithmetic number, because the mean of its divisors is an integer number (6016059).

Almost surely, 2^222796640 is an apocalyptic number.

222796640 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 222796640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288770832).

222796640 is an abundant number, since it is smaller than the sum of its proper divisors (354745024).

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

222796640 is a wasteful number, since it uses less digits than its factorization.

222796640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 222796640 is about 14926.3739736079. The cubic root of 222796640 is about 606.2283084314.

The spelling of 222796640 in words is "two hundred twenty-two million, seven hundred ninety-six thousand, six hundred forty".