402222402642 has 16 divisors (see below), whose sum is σ = 804487027392. Its totient is φ = 134067097200.

The previous prime is 402222402611. The next prime is 402222402653. The reversal of 402222402642 is 246204222204.

It is a super-2 number, since 2×402222402642² (a number of 24 digits) contains 22 as substring.

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, 1634734 + ... + 1864617.

It is an arithmetic number, because the mean of its divisors is an integer number (50280439212).

Almost surely, 2^402222402642 is an apocalyptic number.

402222402642 is an abundant number, since it is smaller than the sum of its proper divisors (402264624750).

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

402222402642 is a wasteful number, since it uses less digits than its factorization.

402222402642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518513.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 402222402642 its reverse (246204222204), we get a palindrome (648426624846).

The spelling of 402222402642 in words is "four hundred two billion, two hundred twenty-two million, four hundred two thousand, six hundred forty-two".