402224431242 has 16 divisors (see below), whose sum is σ = 804461791392. Its totient is φ = 134072655600.

The previous prime is 402224431241. The next prime is 402224431247. The reversal of 402224431242 is 242134422204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (402224431241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107748 + ... + 903359.

It is an arithmetic number, because the mean of its divisors is an integer number (50278861962).

Almost surely, 2^402224431242 is an apocalyptic number.

402224431242 is an abundant number, since it is smaller than the sum of its proper divisors (402237360150).

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

402224431242 is a wasteful number, since it uses less digits than its factorization.

402224431242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077413.

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

Adding to 402224431242 its reverse (242134422204), we get a palindrome (644358853446).

The spelling of 402224431242 in words is "four hundred two billion, two hundred twenty-four million, four hundred thirty-one thousand, two hundred forty-two".