222402006 has 24 divisors (see below), whose sum is σ = 484375320. Its totient is φ = 73748736.

The previous prime is 222401989. The next prime is 222402013. The reversal of 222402006 is 600204222.

It is a happy number.

222402006 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 (18).

It is a self number, because there is not a number n which added to its sum of digits gives 222402006.

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, 28536 + ... + 35483.

It is an arithmetic number, because the mean of its divisors is an integer number (20182305).

Almost surely, 2^222402006 is an apocalyptic number.

222402006 is an abundant number, since it is smaller than the sum of its proper divisors (261973314).

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

222402006 is a wasteful number, since it uses less digits than its factorization.

222402006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64220 (or 64217 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 222402006 is about 14913.1487620824. The cubic root of 222402006 is about 605.8701646496.

Adding to 222402006 its reverse (600204222), we get a palindrome (822606228).

The spelling of 222402006 in words is "two hundred twenty-two million, four hundred two thousand, six".