42255170 has 24 divisors (see below), whose sum is σ = 78609852. Its totient is φ = 16353120.

The previous prime is 42255131. The next prime is 42255181. The reversal of 42255170 is 7155224.

42255170 = 1871² + 1872² + ... + 1882².

It can be written as a sum of positive squares in 2 ways, for example, as 41977441 + 277729 = 6479^2 + 527^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7412 + ... + 11808.

Almost surely, 2^42255170 is an apocalyptic number.

42255170 is a deficient number, since it is larger than the sum of its proper divisors (36354682).

42255170 is a wasteful number, since it uses less digits than its factorization.

42255170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466 (or 4435 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 42255170 is about 6500.3976801423. The cubic root of 42255170 is about 348.3051942400.

The spelling of 42255170 in words is "forty-two million, two hundred fifty-five thousand, one hundred seventy".