42256170 has 48 divisors (see below), whose sum is σ = 119856672. Its totient is φ = 10243680.

The previous prime is 42256157. The next prime is 42256187. The reversal of 42256170 is 7165224.

42256170 is a `hidden beast` number, since 42 + 2 + 5 + 617 + 0 = 666.

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 23 ways as a sum of consecutive naturals, for example, 20352 + ... + 22331.

It is an arithmetic number, because the mean of its divisors is an integer number (2497014).

Almost surely, 2^42256170 is an apocalyptic number.

42256170 is an abundant number, since it is smaller than the sum of its proper divisors (77600502).

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

42256170 is a wasteful number, since it uses less digits than its factorization.

42256170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42707 (or 42704 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 42256170 is about 6500.4745980582. The cubic root of 42256170 is about 348.3079418521.

The spelling of 42256170 in words is "forty-two million, two hundred fifty-six thousand, one hundred seventy".