42544481 has 8 divisors (see below), whose sum is σ = 48719424. Its totient is φ = 36393840.

The previous prime is 42544471. The next prime is 42544483. The reversal of 42544481 is 18444524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42544481 - 2¹⁴ = 42528097 is a prime.

It is a super-2 number, since 2×42544481² = 3620065727118722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42544483) 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 7 ways as a sum of consecutive naturals, for example, 2150 + ... + 9471.

It is an arithmetic number, because the mean of its divisors is an integer number (6089928).

Almost surely, 2^42544481 is an apocalyptic number.

It is an amenable number.

42544481 is a deficient number, since it is larger than the sum of its proper divisors (6174943).

42544481 is a wasteful number, since it uses less digits than its factorization.

42544481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12151.

The product of its digits is 20480, while the sum is 32.

The square root of 42544481 is about 6522.6130499977. The cubic root of 42544481 is about 349.0983075685.

The spelling of 42544481 in words is "forty-two million, five hundred forty-four thousand, four hundred eighty-one".