42465218 has 8 divisors (see below), whose sum is σ = 67444812. Its totient is φ = 19983616.

The previous prime is 42465179. The next prime is 42465229. The reversal of 42465218 is 81256424.

It can be written as a sum of positive squares in 2 ways, for example, as 41126569 + 1338649 = 6413^2 + 1157^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624455 + ... + 624522.

Almost surely, 2^42465218 is an apocalyptic number.

42465218 is a deficient number, since it is larger than the sum of its proper divisors (24979594).

42465218 is a wasteful number, since it uses less digits than its factorization.

42465218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248996.

The product of its digits is 15360, while the sum is 32.

The square root of 42465218 is about 6516.5342015522. The cubic root of 42465218 is about 348.8813755457.

The spelling of 42465218 in words is "forty-two million, four hundred sixty-five thousand, two hundred eighteen".