42477171 has 12 divisors (see below), whose sum is σ = 62253576. Its totient is φ = 25743520.

The previous prime is 42477151. The next prime is 42477187. The reversal of 42477171 is 17177424.

It is not a de Polignac number, because 42477171 - 2¹⁵ = 42444403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (42477121) 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 11 ways as a sum of consecutive naturals, for example, 58146 + ... + 58871.

It is an arithmetic number, because the mean of its divisors is an integer number (5187798).

Almost surely, 2^42477171 is an apocalyptic number.

42477171 is a deficient number, since it is larger than the sum of its proper divisors (19776405).

42477171 is a wasteful number, since it uses less digits than its factorization.

42477171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117042 (or 117031 counting only the distinct ones).

The product of its digits is 10976, while the sum is 33.

The square root of 42477171 is about 6517.4512656406. The cubic root of 42477171 is about 348.9141065514.

The spelling of 42477171 in words is "forty-two million, four hundred seventy-seven thousand, one hundred seventy-one".