42441491 has 4 divisors (see below), whose sum is σ = 42483000. Its totient is φ = 42399984.

The previous prime is 42441481. The next prime is 42441493. The reversal of 42441491 is 19414424.

42441491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42441491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42441493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19181 + ... + 21278.

It is an arithmetic number, because the mean of its divisors is an integer number (10620750).

Almost surely, 2^42441491 is an apocalyptic number.

42441491 is a deficient number, since it is larger than the sum of its proper divisors (41509).

42441491 is a wasteful number, since it uses less digits than its factorization.

42441491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41508.

The product of its digits is 4608, while the sum is 29.

The square root of 42441491 is about 6514.7134242421. The cubic root of 42441491 is about 348.8163854904.

The spelling of 42441491 in words is "forty-two million, four hundred forty-one thousand, four hundred ninety-one".