42544005 has 32 divisors (see below), whose sum is σ = 79392000. Its totient is φ = 19446336.

The previous prime is 42543967. The next prime is 42544027. The reversal of 42544005 is 50044524.

It is not a de Polignac number, because 42544005 - 2¹¹ = 42541957 is a prime.

It is a super-2 number, since 2×42544005² = 3619984722880050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1011 + ... + 9279.

It is an arithmetic number, because the mean of its divisors is an integer number (2481000).

Almost surely, 2^42544005 is an apocalyptic number.

It is an amenable number.

42544005 is a deficient number, since it is larger than the sum of its proper divisors (36847995).

42544005 is an equidigital number, since it uses as much as digits as its factorization.

42544005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8298 (or 8284 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 42544005 is about 6522.5765614518. The cubic root of 42544005 is about 349.0970056259.

Adding to 42544005 its reverse (50044524), we get a palindrome (92588529).

The spelling of 42544005 in words is "forty-two million, five hundred forty-four thousand, five".