420424442420 has 24 divisors (see below), whose sum is σ = 895326421248. Its totient is φ = 165801188000.

The previous prime is 420424442419. The next prime is 420424442429. The reversal of 420424442420 is 24244424024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420424442429) 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, 148035356 + ... + 148038195.

It is an arithmetic number, because the mean of its divisors is an integer number (37305267552).

Almost surely, 2^420424442420 is an apocalyptic number.

It is an amenable number.

420424442420 is an abundant number, since it is smaller than the sum of its proper divisors (474901978828).

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

420424442420 is a wasteful number, since it uses less digits than its factorization.

420424442420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296073631 (or 296073629 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 420424442420 its reverse (24244424024), we get a palindrome (444668866444).

The spelling of 420424442420 in words is "four hundred twenty billion, four hundred twenty-four million, four hundred forty-two thousand, four hundred twenty".