42002402420424 has 32 divisors (see below), whose sum is σ = 105464547576000. Its totient is φ = 13939661936832.

The previous prime is 42002402420423. The next prime is 42002402420467. The reversal of 42002402420424 is 42402420420024.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42002402420391 and 42002402420400.

It is not an unprimeable number, because it can be changed into a prime (42002402420423) 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, 3821173764 + ... + 3821184755.

It is an arithmetic number, because the mean of its divisors is an integer number (3295767111750).

Almost surely, 2^{42002402420424} is an apocalyptic number.

It is an amenable number.

42002402420424 is an abundant number, since it is smaller than the sum of its proper divisors (63462145155576).

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

42002402420424 is a wasteful number, since it uses less digits than its factorization.

42002402420424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7642358757 (or 7642358753 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 42002402420424 its reverse (42402420420024), we get a palindrome (84404822840448).

The spelling of 42002402420424 in words is "forty-two trillion, two billion, four hundred two million, four hundred twenty thousand, four hundred twenty-four".