402420664222 has 16 divisors (see below), whose sum is σ = 606437580672. Its totient is φ = 200276095960.

The previous prime is 402420664193. The next prime is 402420664249. The reversal of 402420664222 is 222466024204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302097 + ... + 946627.

It is an arithmetic number, because the mean of its divisors is an integer number (37902348792).

Almost surely, 2^402420664222 is an apocalyptic number.

402420664222 is a deficient number, since it is larger than the sum of its proper divisors (204016916450).

402420664222 is a wasteful number, since it uses less digits than its factorization.

402420664222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645983.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 402420664222 its reverse (222466024204), we get a palindrome (624886688426).

The spelling of 402420664222 in words is "four hundred two billion, four hundred twenty million, six hundred sixty-four thousand, two hundred twenty-two".