4218634 has 8 divisors (see below), whose sum is σ = 7231968. Its totient is φ = 1807980.

The previous prime is 4218631. The next prime is 4218667. The reversal of 4218634 is 4368124.

4218634 = T₂₇₄ + T₂₇₅ + ... + T₃₅₇.

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

It is a d-powerful number, because it can be written as 4⁶ + 2⁵ + 1 + 8³ + 6 + 3⁹ + 4¹¹ .

It is not an unprimeable number, because it can be changed into a prime (4218631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150652 + ... + 150679.

It is an arithmetic number, because the mean of its divisors is an integer number (903996).

Almost surely, 2^4218634 is an apocalyptic number.

4218634 is a deficient number, since it is larger than the sum of its proper divisors (3013334).

4218634 is a wasteful number, since it uses less digits than its factorization.

4218634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301340.

The product of its digits is 4608, while the sum is 28.

The square root of 4218634 is about 2053.9313523095. The cubic root of 4218634 is about 161.5811207645.

The spelling of 4218634 in words is "four million, two hundred eighteen thousand, six hundred thirty-four".