42112449 has 6 divisors (see below), whose sum is σ = 60829106. Its totient is φ = 28074960.

The previous prime is 42112409. The next prime is 42112463. The reversal of 42112449 is 94421124.

It is a happy number.

42112449 is a `hidden beast` number, since 4 + 211 + 2 + 449 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21455424 + 20657025 = 4632^2 + 4545^2 .

It is not a de Polignac number, because 42112449 - 2⁸ = 42112193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42112409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2339572 + ... + 2339589.

Almost surely, 2^42112449 is an apocalyptic number.

It is an amenable number.

42112449 is a deficient number, since it is larger than the sum of its proper divisors (18716657).

42112449 is a wasteful number, since it uses less digits than its factorization.

42112449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679167 (or 4679164 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 42112449 is about 6489.4105279293. The cubic root of 42112449 is about 347.9126068697.

The spelling of 42112449 in words is "forty-two million, one hundred twelve thousand, four hundred forty-nine".