42170140 has 24 divisors (see below), whose sum is σ = 90718992. Its totient is φ = 16456320.

The previous prime is 42170123. The next prime is 42170171. The reversal of 42170140 is 4107124.

42170140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24894 + ... + 26533.

It is an arithmetic number, because the mean of its divisors is an integer number (3779958).

Almost surely, 2^42170140 is an apocalyptic number.

It is an amenable number.

42170140 is an abundant number, since it is smaller than the sum of its proper divisors (48548852).

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

42170140 is a wasteful number, since it uses less digits than its factorization.

42170140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51477 (or 51475 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 42170140 is about 6493.8540174537. The cubic root of 42170140 is about 348.0714060545.

Adding to 42170140 its reverse (4107124), we get a palindrome (46277264).

The spelling of 42170140 in words is "forty-two million, one hundred seventy thousand, one hundred forty".