42174549 has 12 divisors (see below), whose sum is σ = 60982636. Its totient is φ = 28086912.

The previous prime is 42174523. The next prime is 42174551. The reversal of 42174549 is 94547124.

It is a happy number.

42174549 is a `hidden beast` number, since 42 + 1 + 74 + 549 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20412324 + 21762225 = 4518^2 + 4665^2 .

It is not a de Polignac number, because 42174549 - 2⁷ = 42174421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42174449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9867 + ... + 13479.

Almost surely, 2^42174549 is an apocalyptic number.

It is an amenable number.

42174549 is a deficient number, since it is larger than the sum of its proper divisors (18808087).

42174549 is a wasteful number, since it uses less digits than its factorization.

42174549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4916 (or 4913 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 42174549 is about 6494.1934834127. The cubic root of 42174549 is about 348.0835362280.

The spelling of 42174549 in words is "forty-two million, one hundred seventy-four thousand, five hundred forty-nine".