4218542 has 8 divisors (see below), whose sum is σ = 6532032. Its totient is φ = 2041200.

The previous prime is 4218541. The next prime is 4218547. The reversal of 4218542 is 2458124.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4218541) 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, 33959 + ... + 34082.

It is an arithmetic number, because the mean of its divisors is an integer number (816504).

Almost surely, 2^4218542 is an apocalyptic number.

4218542 is a deficient number, since it is larger than the sum of its proper divisors (2313490).

4218542 is a wasteful number, since it uses less digits than its factorization.

4218542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68074.

The product of its digits is 2560, while the sum is 26.

The square root of 4218542 is about 2053.9089561127. The cubic root of 4218542 is about 161.5799461685.

The spelling of 4218542 in words is "four million, two hundred eighteen thousand, five hundred forty-two".