420520350042 has 96 divisors (see below), whose sum is σ = 1040241646080. Its totient is φ = 121832657280.

The previous prime is 420520350037. The next prime is 420520350049. The reversal of 420520350042 is 240053025024.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 420520349988 and 420520350015.

It is not an unprimeable number, because it can be changed into a prime (420520350049) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 514992 + ... + 1051787.

It is an arithmetic number, because the mean of its divisors is an integer number (10835850480).

Almost surely, 2^420520350042 is an apocalyptic number.

420520350042 is an abundant number, since it is smaller than the sum of its proper divisors (619721296038).

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

420520350042 is a wasteful number, since it uses less digits than its factorization.

420520350042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566868 (or 1566865 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 420520350042 its reverse (240053025024), we get a palindrome (660573375066).

The spelling of 420520350042 in words is "four hundred twenty billion, five hundred twenty million, three hundred fifty thousand, forty-two".