42218716 has 12 divisors (see below), whose sum is σ = 73931032. Its totient is φ = 21095568.

The previous prime is 42218711. The next prime is 42218717. The reversal of 42218716 is 61781224.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42218711) by changing a digit.

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, 6871 + ... + 11473.

Almost surely, 2^42218716 is an apocalyptic number.

It is an amenable number.

42218716 is a deficient number, since it is larger than the sum of its proper divisors (31712316).

42218716 is a wasteful number, since it uses less digits than its factorization.

42218716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6900 (or 6898 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 42218716 is about 6497.5930928306. The cubic root of 42218716 is about 348.2050031816.

The spelling of 42218716 in words is "forty-two million, two hundred eighteen thousand, seven hundred sixteen".