42634218 has 16 divisors (see below), whose sum is σ = 93020256. Its totient is φ = 12919440.

The previous prime is 42634213. The next prime is 42634223. The reversal of 42634218 is 81243624.

42634218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42634213) and next prime (42634223).

It is not an unprimeable number, because it can be changed into a prime (42634211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322921 + ... + 323052.

It is an arithmetic number, because the mean of its divisors is an integer number (5813766).

Almost surely, 2^42634218 is an apocalyptic number.

42634218 is an abundant number, since it is smaller than the sum of its proper divisors (50386038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42634218 is a wasteful number, since it uses less digits than its factorization.

42634218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645989.

The product of its digits is 9216, while the sum is 30.

The square root of 42634218 is about 6529.4883413634. The cubic root of 42634218 is about 349.3435805497.

The spelling of 42634218 in words is "forty-two million, six hundred thirty-four thousand, two hundred eighteen".