42411531 has 16 divisors (see below), whose sum is σ = 58710528. Its totient is φ = 27213600.

The previous prime is 42411511. The next prime is 42411533. The reversal of 42411531 is 13511424.

It is not a de Polignac number, because 42411531 - 2¹⁹ = 41887243 is a prime.

It is a super-2 number, since 2×42411531² = 3597475923527922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42411498 and 42411507.

It is not an unprimeable number, because it can be changed into a prime (42411533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6136 + ... + 11066.

It is an arithmetic number, because the mean of its divisors is an integer number (3669408).

Almost surely, 2^42411531 is an apocalyptic number.

42411531 is a deficient number, since it is larger than the sum of its proper divisors (16298997).

42411531 is a wasteful number, since it uses less digits than its factorization.

42411531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5042.

The product of its digits is 480, while the sum is 21.

The square root of 42411531 is about 6512.4136078723. The cubic root of 42411531 is about 348.7342881631.

Adding to 42411531 its reverse (13511424), we get a palindrome (55922955).

The spelling of 42411531 in words is "forty-two million, four hundred eleven thousand, five hundred thirty-one".