42030422042 has 32 divisors (see below), whose sum is σ = 77777452800. Its totient is φ = 16635725568.

The previous prime is 42030422023. The next prime is 42030422047. The reversal of 42030422042 is 24022403024.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 42030421999 and 42030422017.

It is not an unprimeable number, because it can be changed into a prime (42030422047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2241167 + ... + 2259842.

It is an arithmetic number, because the mean of its divisors is an integer number (2430545400).

Almost surely, 2^42030422042 is an apocalyptic number.

42030422042 is a deficient number, since it is larger than the sum of its proper divisors (35747030758).

42030422042 is a wasteful number, since it uses less digits than its factorization.

42030422042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501070.

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 42030422042 its reverse (24022403024), we get a palindrome (66052825066).

The spelling of 42030422042 in words is "forty-two billion, thirty million, four hundred twenty-two thousand, forty-two".