42177222 has 12 divisors (see below), whose sum is σ = 91384020. Its totient is φ = 14059068.

The previous prime is 42177217. The next prime is 42177251. The reversal of 42177222 is 22277124.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1171572 + ... + 1171607.

It is an arithmetic number, because the mean of its divisors is an integer number (7615335).

Almost surely, 2^42177222 is an apocalyptic number.

42177222 is an abundant number, since it is smaller than the sum of its proper divisors (49206798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42177222 is a wasteful number, since it uses less digits than its factorization.

42177222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343187 (or 2343184 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 42177222 is about 6494.3992793791. The cubic root of 42177222 is about 348.0908898545.

The spelling of 42177222 in words is "forty-two million, one hundred seventy-seven thousand, two hundred twenty-two".