42402400440042 has 32 divisors (see below), whose sum is σ = 89270053139520. Its totient is φ = 13389955464960.

The previous prime is 42402400440041. The next prime is 42402400440073. The reversal of 42402400440042 is 24004400420424.

It is a junction number, because it is equal to n+sod(n) for n = 42402400439991 and 42402400440009.

It is not an unprimeable number, because it can be changed into a prime (42402400440041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1748578 + ... + 9373490.

It is an arithmetic number, because the mean of its divisors is an integer number (2789689160610).

Almost surely, 2^{42402400440042} is an apocalyptic number.

42402400440042 is an abundant number, since it is smaller than the sum of its proper divisors (46867652699478).

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

42402400440042 is a wasteful number, since it uses less digits than its factorization.

42402400440042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7673718.

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

Adding to 42402400440042 its reverse (24004400420424), we get a palindrome (66406800860466).

The spelling of 42402400440042 in words is "forty-two trillion, four hundred two billion, four hundred million, four hundred forty thousand, forty-two".