42218953 has 8 divisors (see below), whose sum is σ = 48444480. Its totient is φ = 36042000.

The previous prime is 42218951. The next prime is 42218977. The reversal of 42218953 is 35981224.

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

It is a cyclic number.

It is not a de Polignac number, because 42218953 - 2¹ = 42218951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42218951) 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 7 ways as a sum of consecutive naturals, for example, 10258 + ... + 13771.

It is an arithmetic number, because the mean of its divisors is an integer number (6055560).

Almost surely, 2^42218953 is an apocalyptic number.

It is an amenable number.

42218953 is a deficient number, since it is larger than the sum of its proper divisors (6225527).

42218953 is a wasteful number, since it uses less digits than its factorization.

42218953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24287.

The product of its digits is 17280, while the sum is 34.

The square root of 42218953 is about 6497.6113303275. The cubic root of 42218953 is about 348.2056547444.

The spelling of 42218953 in words is "forty-two million, two hundred eighteen thousand, nine hundred fifty-three".