442420034 has 64 divisors (see below), whose sum is σ = 811548672. Its totient is φ = 176904000.

The previous prime is 442420021. The next prime is 442420037. The reversal of 442420034 is 430024244.

It is a super-2 number, since 2×442420034² = 391470972969122312, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 442419991 and 442420009.

It is not an unprimeable number, because it can be changed into a prime (442420037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2817884 + ... + 2818040.

It is an arithmetic number, because the mean of its divisors is an integer number (12680448).

Almost surely, 2^442420034 is an apocalyptic number.

442420034 is a deficient number, since it is larger than the sum of its proper divisors (369128638).

442420034 is a wasteful number, since it uses less digits than its factorization.

442420034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 442420034 is about 21033.7831594794. The cubic root of 442420034 is about 761.9823789276.

Adding to 442420034 its reverse (430024244), we get a palindrome (872444278).

The spelling of 442420034 in words is "four hundred forty-two million, four hundred twenty thousand, thirty-four".