42027449 has 16 divisors (see below), whose sum is σ = 45818880. Its totient is φ = 38413440.

The previous prime is 42027443. The next prime is 42027473. The reversal of 42027449 is 94472024.

It is a de Polignac number, because none of the positive numbers 2^k-42027449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42027443) 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, 134117 + ... + 134429.

It is an arithmetic number, because the mean of its divisors is an integer number (2863680).

Almost surely, 2^42027449 is an apocalyptic number.

It is an amenable number.

42027449 is a deficient number, since it is larger than the sum of its proper divisors (3791431).

42027449 is a wasteful number, since it uses less digits than its factorization.

42027449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 42027449 is about 6482.8580888371. The cubic root of 42027449 is about 347.6783729626.

The spelling of 42027449 in words is "forty-two million, twenty-seven thousand, four hundred forty-nine".