42030034 has 4 divisors (see below), whose sum is σ = 63045054. Its totient is φ = 21015016.

The previous prime is 42030031. The next prime is 42030047. The reversal of 42030034 is 43003024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41024025 + 1006009 = 6405^2 + 1003^2 .

It is not an unprimeable number, because it can be changed into a prime (42030031) 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 as a sum of consecutive naturals, namely, 10507507 + ... + 10507510.

Almost surely, 2^42030034 is an apocalyptic number.

42030034 is a deficient number, since it is larger than the sum of its proper divisors (21015020).

42030034 is a wasteful number, since it uses less digits than its factorization.

42030034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21015019.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 42030034 is about 6483.0574577124. The cubic root of 42030034 is about 347.6855010831.

Adding to 42030034 its reverse (43003024), we get a palindrome (85033058).

The spelling of 42030034 in words is "forty-two million, thirty thousand, thirty-four", and thus it is an eban number.