42111441 has 8 divisors (see below), whose sum is σ = 62387360. Its totient is φ = 28074276.

The previous prime is 42111409. The next prime is 42111473. The reversal of 42111441 is 14411124.

It is an interprime number because it is at equal distance from previous prime (42111409) and next prime (42111473).

It is not a de Polignac number, because 42111441 - 2⁵ = 42111409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42111401) 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, 779815 + ... + 779868.

It is an arithmetic number, because the mean of its divisors is an integer number (7798420).

Almost surely, 2^42111441 is an apocalyptic number.

It is an amenable number.

42111441 is a deficient number, since it is larger than the sum of its proper divisors (20275919).

42111441 is a wasteful number, since it uses less digits than its factorization.

42111441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559692 (or 1559686 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 42111441 is about 6489.3328624752. The cubic root of 42111441 is about 347.9098309787.

Adding to 42111441 its reverse (14411124), we get a palindrome (56522565).

The spelling of 42111441 in words is "forty-two million, one hundred eleven thousand, four hundred forty-one".