42210234 has 40 divisors (see below), whose sum is σ = 103184928. Its totient is φ = 12790440.

The previous prime is 42210227. The next prime is 42210239. The reversal of 42210234 is 43201224.

42210234 is a `hidden beast` number, since 422 + 10 + 234 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (42210239) 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 19 ways as a sum of consecutive naturals, for example, 10062 + ... + 13625.

Almost surely, 2^42210234 is an apocalyptic number.

42210234 is an abundant number, since it is smaller than the sum of its proper divisors (60974694).

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

42210234 is a wasteful number, since it uses less digits than its factorization.

42210234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23712 (or 23703 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42210234 is about 6496.9403568141. The cubic root of 42210234 is about 348.1816827768.

Adding to 42210234 its reverse (43201224), we get a palindrome (85411458).

It can be divided in two parts, 42 and 210234, that added together give a triangular number (210276 = T₆₄₈).

The spelling of 42210234 in words is "forty-two million, two hundred ten thousand, two hundred thirty-four".