42234218 has 16 divisors (see below), whose sum is σ = 69050016. Its totient is φ = 19256880.

The previous prime is 42234209. The next prime is 42234229. The reversal of 42234218 is 81243224.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 7 ways as a sum of consecutive naturals, for example, 7628 + ... + 11943.

It is an arithmetic number, because the mean of its divisors is an integer number (4315626).

Almost surely, 2^42234218 is an apocalyptic number.

42234218 is a deficient number, since it is larger than the sum of its proper divisors (26815798).

42234218 is a wasteful number, since it uses less digits than its factorization.

42234218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19669.

The product of its digits is 3072, while the sum is 26.

The square root of 42234218 is about 6498.7858866099. The cubic root of 42234218 is about 348.2476163000.

The spelling of 42234218 in words is "forty-two million, two hundred thirty-four thousand, two hundred eighteen".