420424002442 has 16 divisors (see below), whose sum is σ = 674105084352. Its totient is φ = 196168144480.

The previous prime is 420424002367. The next prime is 420424002473. The reversal of 420424002442 is 244200424024.

It is a self number, because there is not a number n which added to its sum of digits gives 420424002442.

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, 111457288 + ... + 111461059.

It is an arithmetic number, because the mean of its divisors is an integer number (42131567772).

Almost surely, 2^420424002442 is an apocalyptic number.

420424002442 is a deficient number, since it is larger than the sum of its proper divisors (253681081910).

420424002442 is a wasteful number, since it uses less digits than its factorization.

420424002442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222918413.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 420424002442 its reverse (244200424024), we get a palindrome (664624426466).

The spelling of 420424002442 in words is "four hundred twenty billion, four hundred twenty-four million, two thousand, four hundred forty-two".