42034531 has 16 divisors (see below), whose sum is σ = 52881408. Its totient is φ = 32457600.

The previous prime is 42034529. The next prime is 42034537. The reversal of 42034531 is 13543024.

It is not a de Polignac number, because 42034531 - 2¹ = 42034529 is a prime.

It is a super-2 number, since 2×42034531² = 3533803592779922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42034537) 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, 6286 + ... + 11116.

It is an arithmetic number, because the mean of its divisors is an integer number (3305088).

Almost surely, 2^42034531 is an apocalyptic number.

42034531 is a deficient number, since it is larger than the sum of its proper divisors (10846877).

42034531 is a wasteful number, since it uses less digits than its factorization.

42034531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 42034531 is about 6483.4042755330. The cubic root of 42034531 is about 347.6979008347.

Adding to 42034531 its reverse (13543024), we get a palindrome (55577555).

The spelling of 42034531 in words is "forty-two million, thirty-four thousand, five hundred thirty-one".