42152170 has 8 divisors (see below), whose sum is σ = 75873924. Its totient is φ = 16860864.

The previous prime is 42152161. The next prime is 42152183. The reversal of 42152170 is 7125124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 34351321 + 7800849 = 5861^2 + 2793^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 2107599 + ... + 2107618.

Almost surely, 2^42152170 is an apocalyptic number.

42152170 is a deficient number, since it is larger than the sum of its proper divisors (33721754).

42152170 is a wasteful number, since it uses less digits than its factorization.

42152170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215224.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 42152170 is about 6492.4702540712. The cubic root of 42152170 is about 348.0219577020.

Adding to 42152170 its reverse (7125124), we get a palindrome (49277294).

The spelling of 42152170 in words is "forty-two million, one hundred fifty-two thousand, one hundred seventy".