222405628 has 12 divisors (see below), whose sum is σ = 412104672. Its totient is φ = 104661440.

The previous prime is 222405613. The next prime is 222405647. The reversal of 222405628 is 826504222.

It is a self number, because there is not a number n which added to its sum of digits gives 222405628.

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, 1635268 + ... + 1635403.

It is an arithmetic number, because the mean of its divisors is an integer number (34342056).

Almost surely, 2^222405628 is an apocalyptic number.

It is an amenable number.

222405628 is a deficient number, since it is larger than the sum of its proper divisors (189699044).

222405628 is a wasteful number, since it uses less digits than its factorization.

222405628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270692 (or 3270690 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 222405628 is about 14913.2701980484. The cubic root of 222405628 is about 605.8734536634.

The spelling of 222405628 in words is "two hundred twenty-two million, four hundred five thousand, six hundred twenty-eight".