420242004422 has 4 divisors (see below), whose sum is σ = 630363006636. Its totient is φ = 210121002210.

The previous prime is 420242004379. The next prime is 420242004433. The reversal of 420242004422 is 224400242024.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 420242004391 and 420242004400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105060501104 + ... + 105060501107.

It is an arithmetic number, because the mean of its divisors is an integer number (157590751659).

Almost surely, 2^420242004422 is an apocalyptic number.

420242004422 is a deficient number, since it is larger than the sum of its proper divisors (210121002214).

420242004422 is a wasteful number, since it uses less digits than its factorization.

420242004422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210121002213.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 420242004422 its reverse (224400242024), we get a palindrome (644642246446).

The spelling of 420242004422 in words is "four hundred twenty billion, two hundred forty-two million, four thousand, four hundred twenty-two".