42420434441 has 64 divisors (see below), whose sum is σ = 57921454080. Its totient is φ = 30046464000.

The previous prime is 42420434437. The next prime is 42420434447. The reversal of 42420434441 is 14443402424.

It is not a de Polignac number, because 42420434441 - 2² = 42420434437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42420434398 and 42420434407.

It is not an unprimeable number, because it can be changed into a prime (42420434447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32908925 + ... + 32910213.

It is an arithmetic number, because the mean of its divisors is an integer number (905022720).

Almost surely, 2^42420434441 is an apocalyptic number.

It is an amenable number.

42420434441 is a deficient number, since it is larger than the sum of its proper divisors (15501019639).

42420434441 is a wasteful number, since it uses less digits than its factorization.

42420434441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 42420434441 its reverse (14443402424), we get a palindrome (56863836865).

The spelling of 42420434441 in words is "forty-two billion, four hundred twenty million, four hundred thirty-four thousand, four hundred forty-one".