442403152212 has 96 divisors (see below), whose sum is σ = 1269616239360. Its totient is φ = 117015275520.

The previous prime is 442403152153. The next prime is 442403152283. The reversal of 442403152212 is 212251304244.

It is a happy number.

It is a super-2 number, since 2×442403152212² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 442403152212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2452287 + ... + 2626502.

It is an arithmetic number, because the mean of its divisors is an integer number (13225169160).

Almost surely, 2^442403152212 is an apocalyptic number.

442403152212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

442403152212 is an abundant number, since it is smaller than the sum of its proper divisors (827213087148).

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

442403152212 is a wasteful number, since it uses less digits than its factorization.

442403152212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5078881 (or 5078879 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 442403152212 its reverse (212251304244), we get a palindrome (654654456456).

The spelling of 442403152212 in words is "four hundred forty-two billion, four hundred three million, one hundred fifty-two thousand, two hundred twelve".